Skip to content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z orthokinesis A form of kinesis in which the speed of movement of the individual is dependent upon the intensity of the stimulus. orthokinetic Describing any property related to the kinetic energy imparted by collisions with other bodies ortholattice An orthocomplemented lattice. ortholinear Of a keyboard, having keys that are aligned in a perfect grid. ortholinearity The state of being ortholinear. ortholog Any of two or more homologous gene sequences found in different species related by linear descent. orthological Relating to orthology orthologization The process of rendering something orthologous. orthologous Exhibiting orthology; having been separated by a speciation event. Usually while retaining the same function. orthologously In regard to, or by means of orthology orthologue One of two or more homologous gene sequences found in different species. orthology Correct speaking or the correct use of words. orthomagmatic Relating to the main phase of crystallisation of magma. orthomegodont Being or having teeth with a nonelongated crown and symmetrical median labial lobe, especially in rodents such as zokors. orthometer A device for measuring the asymmetry of teeth. orthometric Having axes at right angles. orthometrically In an orthometric manner. orthometry The art or practice of constructing verses correctly or harmoniously; the rules of correct poetry. orthominasragrite An orthorhombic-pyramidal mineral containing hydrogen, oxygen, sulfur, and vanadium. orthomitosis A form of mitosis characterized by an axial, central, symmetric, and bipolar spindle. orthomode describing a transducer that use two orthogonally polarized microwave beams orthomodular Describing a lattice with the property that its every orthogonal pair is modular. orthomodularity The condition of being orthomodular orthomolecular Relating to the theory that human health, including mental illness, depends upon chemical deficiencies and can be cured with vitamins etc. orthomorphic conformal orthomorphism A morphism that is also a permutation orthomorphodont Having the normal form of dentition orthomosaic A mosaic of orthorectified images orthomyxoviral Relating to the orthomyxoviruses. orthomyxovirus Any RNA virus of Orthomyxoviridae family characterised by having two long glycoprotein spikes. orthonairovirus Any virus of the genus Orthonairovirus orthonasal Perceived via the front of the nose (by sniffing) orthonasally In an orthonasal manner orthonectid Any of the Orthonectida, a small phylum of parasites of marine invertebrates. orthoneurous Exhibiting or relating to orthoneury. orthonitrate The anion NO₄³⁻ or any salt containing this anion orthonitrotoluene An organic compound with the formula CH₃C₆H₄NO₂. orthonormal Of a set of vectors, both orthogonal and normalized. orthonormality The condition of being orthonormal orthonormalization A form of orthogonalization in which the resulting vectors are all unit vectors orthonormalize To make a set of vectors both orthogonal and normalized. orthonormalized Subject to, or produced by orthonormalization orthonormalizing That orthonormalizes orthonormally In an orthonormal manner orthonychid Any logrunner in the family Orthonychidae. orthonym The real name of a person who uses a pseudonym. orthonymous Of, pertaining to, or being an orthonym. orthopaedical Pertaining to orthopaedics; characteristic of orthopaedia. orthopair A pair of orthogonal or disjoint subsets (of a given universe) orthopalinal Moved backwards and forwards in a straight line orthopalinally In an orthopalinal manner orthopanoramic By means of an orthopantomograph orthopantomogram A panoramic radiograph of the whole mouth, including the jaws and teeth. orthopantomograph A panoramic dental X-ray device orthopantomographic Relating to orthopantomography. orthopantomographically By means of orthopantomography. orthopantomography A form of radiography that produces panoramic images of the mouth. orthopathy An alternative-medicine philosophy advocating a vegetarian raw-food diet with periods of intermittent fasting. orthoped Synonym of orthopod. orthopedagogic Relating to orthopedagogy orthopedagogical Relating to orthopedagogy orthopedagogy The teaching of correct behaviour orthopedal Orthogonal to the foot of a geometric figure. orthopedia The branch of medicine which deals with the prevention and correction of deformities in bodies; orthopedics. orthopediatrician A doctor who specializes in orthopedics orthopedic Of or relating to orthopedics. orthopedically In an orthopedic manner. orthopedics The branch of medicine that deals with the prevention or correction of disorders of the bones and associated muscles and joints. orthopedist A surgeon who specializes in orthopedics. orthoperiodate The oxyanion IO₆⁵⁻ or any salt containing this anion orthoperiodic Relating to orthoperiodic acid orthopervanadate The oxyanion of vanadium VO₆³⁻ or any salt containing this anion orthophasmavirus Any RNA virus of the genus Orthophasmavirus orthophemism An orthophemistic term, one that is neither euphemism nor dysphemism. orthophemistic Plainly denotative; not euphemistic or dysphemistic. orthophenylene The ortho- form of the phenylene radical. orthophenylphenol A biocide used as a preservative, consisting chemically of two linked benzene rings and a phenolic hydroxyl group. orthophlebiid Any scorpionfly of the family Orthophlebiidae orthophonic Relating to orthophony orthophonist speech therapist orthophony The art of correct articulation / speaking orthophoria The normal condition in which the tension of the extrinsic eye muscles is equal, the visual axes being therefore parallel orthophoric Relating to orthophoria. orthophosphate Any salt or ester of orthophosphoric acid; an ordinary phosphate orthophosphite Phosphite. orthophosphoric Describing the ordinary form of phosphoric acid and its derivatives orthophoto An aerial photograph that has been geometrically corrected (orthorectified) such that the scale of the photograph is uniform, meaning that the photo can be considered equivalent to a map. orthophotograph Synonym of orthophoto. orthophotographic Of or relating to orthophotography. orthophotographically In terms of, or by means of, orthophotography. orthophotography The geometrical correction of aerial photographs so that their displayed distances are rendered uniform and can be measured like a map. orthophotomap A map in the form of an orthophotomosaic. orthophotomosaic An image composed of multiple orthophotos orthophotoquad A quadrangle of orthophotos orthophthalic Relating to ortho isomers of phthalic compounds orthophyre a porphyritic rock that contains phenocrysts of orthoclase embedded in feldspar orthophyric Relating to or composed of orthophyre orthopia Normal vision; an absence of a visual disorder. orthopic Of or pertaining to orthopia; of normal vision. orthopically In an orthopic manner. orthopinacoid Either of the two planes in the monoclinic system which are parallel to the vertical and orthodiagonal axes. orthopinakiolite An orthorhombic-dipyramidal black mineral containing boron, iron, magnesium, manganese, and oxygen. orthoplasy A theory of evolution, stating that that individual modifications supplement, protect, or screen organic characters and keep them alive until useful congenital variations arise and survive by natural selection, and that this process, combined in many cases with 'tradition', gives direction to evolution. orthoplex A convex polytope analogous to an octahedron (3 dimensions) or 16-cell (4 dimensions). orthoploid euploid orthopneic Of or relating to orthopnea—a morbid condition in which respiration can be performed only in an erect posture. orthopneumovirus Any virus of the genus Orthopneumovirus. orthopnic Exhibiting or relating to orthopnoea. orthopnoea Shortness of breath when lying flat, causing the person to have to sleep propped up in bed or sitting in a chair. orthopod An orthopaedic surgeon. orthopositronium The state of a positronium exotic atom in which the positron and electron have parallel spins orthopox Infection with an orthopoxvirus. orthopoxviral Of or relating to orthopoxviruses. orthopoxvirus Any of the genus Orthopoxvirus of poxviruses, including smallpox and many species isolated from mammals. orthopractic Relating or conforming to orthopraxy. orthoprax Correct in practice (though not necessarily in opinion or belief); practically right, doing the right actions. orthopraxical orthopractic orthopraxically In an orthopraxical fashion. orthopraxis orthopraxy orthopraxy Correctness of practice or action in regard to religion and especially religious ritual, particularly in juxtaposition to "correct doctrine", or "correct belief" (that is, "orthodoxy"). orthoprism A prism which has its faces parallel to its vertical axis. orthoprosthesis An orthodontic prosthesis orthopsychiatric Of or pertaining to orthopsychiatry. orthopsychiatrist A psychiatrist involved in orthopsychiatry. orthopsychiatry branch of psychiatry concerned with the prevention of mental illness, especially in the young orthopsychology An approach to psychology focusing on positive human traits such as love, creativity, and personal autonomy. orthopter Any insect of the order Orthoptera orthoptera Any of very many four-winged insects, of the order Orthoptera, such as grasshoppers, crickets and locusts orthopteral Synonym of orthopterous. orthopteran Any of many insects of the order Orthoptera. orthopterist An entomologist who specialises in orthopters orthopteroid Any of the insects historically included in the order Orthoptera, including the cockroaches, earwigs, praying mantises, etc. orthopterologic Relating to orthopterology. orthopterological Relating to orthopterology. orthopterologically In terms of orthopterology. orthopterologist An entomologist who studies orthopterology. orthopterology The scientific study of the Orthoptera. orthopterous Belonging to the Orthoptera. orthoptic Relating to orthoptics, the study and treatment of muscular irregularities of the eye. orthoptics The study and treatment of muscular irregularities of the eye. orthoptist One who practices orthoptics (muscular irregularities of the eye). orthopyroxene Any pyroxene that forms orthorhombic crystals. orthopyroxenite An ultramafic and ultrabasic rock normally composed of the mineral orthopyroxene orthoquarkonium A form of quarkonium where the spins of the constituent quarks are parallel. orthoquartzite A very pure quartz sandstone composed of usually well rounded quartz grains cemented by silica. orthoquartzitic Of or relating to orthoquartzite. orthoquinone 1,2-benzoquinone orthoradial Relative to a grid of circles surrounding a point and lines starting at that point; such a graph has alternate circular and radial components orthoradially In an orthoradial manner. orthorectification The processing of an aerial photograph by orthorectifying it.