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 syneisaktism The practice, from early Christian until mediaeval times, of a man and woman living together in a non-legalised relationship while observing vows of chastity. Synelnykove A raion in southeast Dnipropetrovsk Oblast, Ukraine, established in 1923. synema The column of combined filaments in a monadelphous flower. synemin An intermediate filament that localizes at the Z-disk and has been shown to bind to α-dystrobrevin, α-actinin, and desmin to act as a mechanical linker in transmitting force laterally throughout the tissue, especially between the contractile myofibrils and extracellular matrix. synendemic Relating to a syndemic synephrine The alkaloid 4-[1-hydroxy-2-(methylamino)ethyl]phenol, whose m-substituted analog, neosynephrine, is used in pharmaceuticals. synepitheliochorial Synonym of epitheliochorial. synergetic Relating to synergetics. synergetically synergistically synergetics A school of thought on thinking and geometry developed by Buckminster Fuller. synergic Of or pertaining to synergy; synergistic synergically In a synergic manner synergid Either of two naked nucleated cells at the top of the embryo sac that cooperate with the oosphere in the production of the embryo. synergism synergy synergist Any synergistic agent. synergistic Of or pertaining to synergy or synergism; synergic; co-operative, working together, interacting, mutually stimulating. synergistical Synonym of synergistic. synergistically In a synergistic manner. synergize To act as a synergetic agent. synergizer Anything that synergizes synergy A synonym of binding energy. synerize To undergo synaeresis. syneruptive At the time of an eruption. syneruptively In a syneruptive manner; occurring during the time of a volcanic eruption. synesis A grammatical construction in which a word takes the gender or number not of the word with which it should regularly agree, but of some other implied word. synesthesiac Someone with synesthesia. synestia A donut-shaped body of vaporized and molten rock formed from the collision of two planet-sized objects. synetic Of or relating to synesis. synexin A particular adrenal medullary protein involved in calcium metabolism synexpression The coordinated expression of separate genes that have the same function synextensional Occurring simultaneously with crustal extension. synezeugmenon Synonym of prozeugma synfibrosis The connection of bones by means of fibrous tissue synfire Being or relating to a feedforward network of neurons with multiple layers or pools, where neural impulses propagate synchronously back and forth from layer to layer. synflood A denial-of-service attack in which the attacker sends a succession of SYN (synchronization) requests to the target system in an attempt to consume its resources and make the system unresponsive to legitimate traffic. synflorescence A compound inflorescence. synform A topographic feature which is composed of sedimentary layers in a concave formation, but may not actually form a real syncline (i.e., the youngest rocks may not be exposed in the middle). synformal Relating to a synform. synfuel Any of several fuels synthesized from coal or shale etc, or fermented from grain etc. syngameon A grouping of genetically related organisms that may or may not be morphologically similar and are recognized by systematists as being in different species or subspecies and may even belong to different genera. syngamic Relating to syngamy. syngamid Any in the family Syngamidae of nematodes. syngamous Exhibiting or pertaining to syngamy. syngamy The fusion of two gametes to form a zygote. synganglial Relating to a synganglion synganglion A nerve mass located near the esophagus in certain ticks. syngas Synthesis gas or coal gas. Synge A surname. syngeneic Genetically identical, or sufficiently identical and immunologically compatible as to allow for transplantation. syngeneically In a syngeneic manner syngeneicity The quality of being syngeneic. syngenesian syngenesious; synantherous syngenesiotransplant A syngeneic transplant. syngenesiotransplantation Synonym of syngeneic transplantation syngenesious synantherous syngenesis The genetic origin of an individual derived from material from both parents (by sexual reproduction). syngenetic Of, pertaining to, or arising from syngenesis syngenic syngeneic syngenite An evaporite, consisting of a mixed potassium and calcium sulphate syngnathia A congenital adhesion of the maxilla and mandible by fibrous bands. syngnathid Any member of the family Syngnathidae of seahorses, sea dragons, and pipefish, all with fused jaws. syngnathiform Any fish of the order Syngnathiformes. syngnathous Relating to the order Syngnathiformes (sometimes suborder Syngnathoidei or Syngnathi) of pipefishes and close relatives. syngnome A figure of speech in which the speaker shows mercy, clemency, or forgiveness to an adversary or offender, often in a context of having suffered injury or injustice. syngraft An isograft. syngraph A document signed by both or all of the parties to a contract or bond. synharmonic Of or pertaining to synharmony. synharmonically In a synharmonic manner. synharmonism Vowel harmony. synharmony The property of being an echo vowel. synhexyl Synonym of parahexyl. synhymenium A hypostomial frange. synisonym Any of a set of names that share a basionym. synizesis The fusion of two syllables into one without the formation of a recognized diphthong, especially to fit a certain poetic meter. synizetic synizesis (the fusion of two syllables into one without the formation of a recognized diphthong, especially to fit a certain poetic meter) synkaryon A cell nucleus formed by the fusion of two preexisting nuclei (such as in an egg and a sperm cell) synkinematic Synonym of synorogenic. synkinematically In a synkinematic manner. synkinesia Synonym of synkinesis. synkinesis The involuntary movement of one body part when moving another. synkinetic Of or relating to synkinesia. synkinetically In a synkinetic manner; by synkinesia. synlestid Any damselfly in the family Synlestidae. synmagmatic Occurring during the same time period as magmatic activity. synmetamorphic Occurring during the same time period as metamorphism. synnema A large, erect reproductive structure in some fungi, bearing compact conidiophores that fuse together to form a strand with conidia at the end or on the edges. synnematous Relating to synnemata. synneurosis syndesmosis synneusis The mutual orientation and adherence of crystals in a fluid to form phenocrysts Synnott A surname, variant of Sinnott synnyrite Synonym of kalsilite syenite. syno Any member of the genus Synodontis of catfishes. synocha synochus; continuous fever synochal Of or pertaining to synocha; like synocha. synochoid synochal synochreate Uniting together on the opposite side of the stem from the leaf, and enclosing the stem in a sheath of stipules. synochus A continuous fever. synocil A supposed sense organ found in certain sponges, consisting of several filaments, each arising from a single cell. synocracy Rule by consensus. synod An ecclesiastic council or meeting to consult on church matters. synodal A monetary tribute formerly paid to the bishop or archdeacon, at the time of his Easter visitation, by every parish priest. synodality The quality or style of a synod; fraternal collaboration and discernment as typified in a synod. synodally By means of a synod synodic Of, related to or produced by a synod; synodal. synodical Synonym of synodic. synodically In a synodical manner; in a synod; by the authority of a synod. synodist An adherent to, or member of, a synod. synodont Any member of the genus Synodontis of catfishes. synodontid Any fish in the family Synodontidae, the lizardfishes. synodsman A member of a church synod. synoeciosis Synonym of enantiosis. synoecious With male and female organs in the same structure. synoecism The unification of towns, tribes etc. under one capital city or polis. synoecize To join diverse things together. synoecy The condition of being synoecious. synoekete Any myrmecophilous insect that does not interact with the host insects synoglyph A synonymous glyph: a glyph with a different appearance but with the same meaning in some context. synoicous synoecious synomone Any substance produced by an individual of one species that benefits both the producer and the recipient which is of a different species. synomosy A group of political or other conspirators bound together by oath; a secret society. synonym A term (word or phrase) which is synonymous with others. synonyma synonyms synonymal synonymous synonymatic synonymous synonymia The use of two or more synonyms together to amplify or explain a given subject or term. A kind of repetition that adds force. synonymic Of, relating to, or being a synonym. synonymical synonymic synonymically In a synonymic manner. synonymicon Synonym of thesaurus. synonymics Synonym of synonymy (the study of synonyms) synonymification The collapsing together of more or less synonymous words into one common linguistic category. synonymist A person who uses or studies synonyms, especially one who curates collections of them. synonymity The state of being a synonym. synonymization The action, or the result of synonymizing (especially of taxa). synonymize To express by a synonym or synonyms. synonymizer A person who uses or studies synonyms, especially one who curates collections of them. synonymless Having no synonyms. synonymomania A tendency to refer to the same thing successively by a number of synonyms to avoid repetition. synonymous Having a similar (sometimes identical) meaning. (See Usage notes below) synonymously In a synonymous way. synonymousness The quality of being synonymous. synonymum Synonym. synonymy A certain degree of similarity between the meaning(s) of several (synonymous) words or phrases. (See Usage notes below.) synophrys The condition in which the eyebrows grow together. synophthalmia Fusion of the eyes, as in cyclopia. synophthalmic Exhibiting or relating to synophthalmia. synopsia A form of synaesthesia where hearing sound induces the perception of color. synopsis A brief summary of the major points of a written work, either as prose or as a table; an abridgment or condensation of a work. synopsize To give a synopsis (summary) of. synoptic Of or relating to a synopsis.