Word origins

• astrapophobiaastraphobia, brontophobia
• astro-celestial bodies: fixed stars, wandering stars (planets), etc.; space; astronomy
• astroblemeA pit-like structure created by an impacting meteoroid, asteroid or comet.
• astroidA hypocycloid with four cusps.
• astrophylliteA rare, brown to golden-yellow hydrous potassium iron titanium silicate mineral, visually identical to kupletskite.
• asymmetronA massive scalar field proposed as a form of dark matter
• asynartetedisconnected; not fitted or adjusted.
• ataracticThat has a tranquilizing effect.
• atelo-incomplete; unfinished; defective.
• AthamasA Boeotian king, father of Phrixus and Helle by his first wife Nephele, whom he deserted for Ino.
• athanasyAn absence of death or the condition of everlasting life.
• athanogeneA protein that makes cells resistant to apoptosis.
• atheousAtheistic.
• atherineA small marine fish of the family Atherinidae having a silvery stripe along the sides.
• athermanousNot transmitting heat.
• athero-arterial conditions that are characterised by gruel-like lesions
• atheroidShaped like an ear of grain.
• athetesisThe act or fact of setting aside as spurious; rejection as invalid.
• athetizeTo reject a passage of text as spurious.
• athetosisA series of involuntary writhing movements of the limbs, typically bilateral and symmetric and predominantly affecting the distal parts of the limbs.
• athrepsiaProfound debility of children due to lack of food and to unhygienic surroundings.
• atimypublic disgrace or stigma; outlawry; loss of civil rights
• attakoliteA monoclinic-prismatic mineral containing aluminum, calcium, hydrogen, iron, manganese, oxygen, phosphorus, silicon, and strontium.
• augeliteA mineral with monoclinic crystals of the chemical formula Al₂(PO₄)(OH)₃.
• aulacopodHaving a pair of parapodial grooves so that the ciliated sole extends above the foot margin.
• auleteAn aulos player.
• auletrisA courtesan or prostitute in Ancient Greece who played the flute to provide entertainment.
• aulicOf or pertaining to a royal court; courtly.
• ausoniumA rejected name for neptunium. (Ausonium chemical symbol: Ao)
• autacoidA hormone or similar compound that has a short-term, local effect
• autagonistophiliaA paraphilia in which sexual arousal is derived from being recorded during sexual activity, or performing onstage infront of others.
• autemesiaSelf-induced vomiting.
• autochthonThe earliest inhabitant of an area; an indigenous person.
• autodidacticOf, relating to, or being an autodidact; self-taught; self-educated.
• autophanousProducing its own light.
• autopticSeen with one's own eyes; belonging to, or connected with, personal observation.
• autoschediasmAnything done with little forethought or preparation.
• autosomeAny eukaryotic chromosome other than sex chromosomes.
• autotrophAny organism that can synthesize its food from inorganic substances, using heat or light as a source of energy.
• auxesisOverstatement, hyperbole.
• auxeticHaving the property of counterintuitively expanding when being stretched.
• auxetophoneA pneumatic type of sound-playback device used in the early part of the twentieth century.
• AuxoOne of the Charites worshipped in Athens.
• axiologyThe study of value(s), as regards origin, nature, functions, types, and interrelations; value theory.
• axo-axis
• axonemeA bundle of nine microtubules forming the internal scaffolding of a cilium, with two extra central microtubules connecting the others if the cilium is motile
• axophyteAny plant with an axis or stem
• azeotropeA mixture of two or more substances whose liquid and gaseous forms have the same composition (at a certain pressure); the substances cannot be separated by normal distillation.
• BacchylidesAn Ancient Greek name, particularly borne by a 5th century Ancient Greek lyric poet.
• baenopodOne of the thoracic legs of arthropods.
• balanephagousAcorn-eating.
• balanoidResembling an acorn; applied to the acorn barnacles
• balipholiteAn orthorhombic-dipyramidal mineral containing aluminum, barium, fluorine, hydrogen, lithium, magnesium, oxygen, and silicon.
• ballismusA condition characterised by violent involuntary rapid and irregular movements.
• balneologyThe study of baths and bathing, especially therapeutic bathing.
• banausicOf or pertaining to technical matters; mechanical.
• BarabraThe Nubian peoples of northern Sudan and southern Egypt.
• baro-pressure
• bary-Weight or pressure.
• baryliteAn orthorhombic-pyramidal mineral containing barium, beryllium, oxygen, and silicon.
• baryo-baryon
• baryonyxBaryonyx walkeri, a theropod from the Cretaceous period discovered in 1983 in Surrey, England by William Walker, believed to be an ancestor of Spinosaurus.
• barysiliteA trigonal-hexagonal scalenohedral mineral containing lead, manganese, oxygen, and silicon.
• barytesBarite.
• barythymiaA depressed state of mind.
• basiceriteThe second joint of the antennae of crustaceans.
• basidiumA small structure, shaped like a club, found in the Basidiomycota division of fungi, that bears four spores at the tips of small projections.
• basihyalEither of two small bones that form the body of the inverted hyoid arch.
• basileanA royalist; a partisan of a king.
• basileiolatryWorship of the king.
• basileolatrybasileiolatry
• basiliconAny of various ointments believed to have “sovereign” virtues.
• basilolatrybasileiolatry
• bathmismA supposed growth force in vitalism.
• bathmophobiaThe fear of stairs and steep slopes.
• bathukolpicDeep-bosomed.
• batologistA botanist who studies the genus Rubus, i.e. brambles.
• batologyThe scientific study of plants in the genus Rubus, commonly known as brambles.
• batrachologyThe study of amphibians
• batrachophagousFeeding on frogs.
• batrachophobiaFear of frogs.
• battologyContinual unnecessary reiteration of the same words, phrases, or ideas.
• baylisascariasisinfection with Baylisascaris nematodes
• bdellatomyThe snipping off the tail of a leech engaged in sucking human blood, in order to let the blood run out of it and so increase its powers of drawing blood.
• bdellinAny of a class of proteinase inhibitors found in leeches.
• bdelloidOf or pertaining to rotifers of the subclass Bdelloidea
• bdelloid rotiferOne of a class of rotifers in the class Bdelloidea, found in freshwater and moist soil.
• bdelygmiaAbnormal disgust at or loathing of food.
• BeerothA biblical city seven miles northwest of Jerusalem; an ancient Hivite settlement, mentioned in Joshua 9:17, 18:25, 2 Samuel 4:2-3, Ezra 2:25 and Nehemiah 7:29.
• beloidResembling an arrow, particularly in having a narrow and pointed shape; arrowlike.
• belomancyStudying the flight of arrows, an ancient form of divination used by the Greeks and Arabs.
• beloniteA miniscule acicular or dendritic crystallite sometimes found in glassy volcanic rocks.
• belonoidShaped like a needle.
• bentho-Benthic, related to the benthos.
• beside oneselfOvercome; consumed by an emotion.
• bi-Two in number.
• biastophileOne who has biastophilia.
• biastophiliaA paraphilia involving sexual arousal from committing rape.
• biastophiliacOne who has biastophilia.
• biastophilicOf or relating to biastophilia.