Real Words Without Definition
This one is a judgement call.
A scientific or medical word built out of Greek and Latin roots. This is the biggest group in the list, about a third of everything.
Medicine gives us anconitis, inflammation of the elbow, and adenalgy, pain in a gland. Chemistry gives us acetylsalicylic. Anatomy, botany and zoology all do the same thing.
Once you know the roots they are completely predictable, which is why no dictionary lists them all. You can keep making new ones forever.
18,355 words · sorted A to Z · each with a line on why it is here
Matches the word itself, not the note beside it. Case does not matter.
| Word, sorted Z to A | Field and meaning |
|---|---|
| apocaffeine | chemistry, a derivative of caffeine |
| apocamphoric | chemistry, apocamphoric acid |
| apocatharsis | medical, complete purgation |
| apocathartic | medical, strongly purgative |
| apocholic | chemistry, apocholic acid |
| apocinchonine | chemistry, derivative of cinchonine |
| apocrenic | chemistry, apocrenic (humus) acid |
| apocrustic | old medicine, astringent, repellent |
| apodematal | zoology, of an apodeme |
| apoembryony | botany, absence of embryo formation |
| apogaic | astronomy, pertaining to the apogee |
| apogalacteum | astronomy, point farthest from galaxy center |
| apogenous | botany, lacking reproductive power |
| apoious | without distinctive qualities (Gr. apoios) |
| apolegamic | biology, pertaining to sexual selection |
| apomecometry | surveying, measurement of distances |
| apometabolic | entomology, without metamorphosis |
| apometabolism | entomology, absence of metamorphosis |
| apometabolous | entomology, without metamorphosis |
| apometaboly | entomology, absence of metamorphosis |
| aponeurorrhaphy | surgery, suture of an aponeurosis |
| aponeurositis | medical, inflammation of an aponeurosis |
| aponeurotome | surgery, knife for cutting aponeuroses |
| aponic | medical, relieving pain or fatigue |
| apophlegm | old medicine, agent expelling phlegm |
| apophorometer | instrument for measuring exhalations |
| apophylactic | medical, of apophylaxis |
| apophylaxis | medical, decline of protective power |
| apoplasmodial | biology, not forming a plasmodium |
| apoplastogamous | biology, without plastogamy |
| apoplectoid | medical, resembling apoplexy |
| apoquinine | chemistry, a derivative of quinine |
| aporhyolite | petrology, an altered rhyolite |
| aporobranchian | zoology, of the Aporobranchia |
| aporrhaoid | conchology, like the genus Aporrhais |
| aporrhegma | biochem., toxic protein cleavage product |
| aposaturn | astronomy, point farthest from Saturn |
| aposia | medical, absence of thirst |
| apositia | medical, aversion to food |
| apositic | medical, causing loathing of food |
| aposporogony | biology, absence of sporogony |
| apostematic | medical, of an aposteme, abscess |
| apoturmeric | chemistry, apoturmeric acid |
| apoxesis | surgery, scraping, curettage |
| apozymase | biochem., the apoenzyme of zymase |
| apparentation | biology, relationship by descent |
| appendalgia | medical, pain in the appendix |
| appendicectasis | medical, dilatation of the appendix |
| appendicocaecostomy | surgery, appendix-to-caecum opening |
| appendorontgenography | medical, X-ray study of the appendix |
| appendotome | surgery, instrument for the appendix |
| apperceptionism | psychology, doctrine of apperception |
| apperceptionist | psychology, adherent of apperceptionism |
| apperceptionistic | psychology, of apperceptionism |
| appersonification | psychiatry, delusion of being another |
| aproctia | medical, absence of the anus |
| aprosopous | medical, born without a face |
| aproterodont | zoology, lacking front teeth |
| apselaphesia | medical, loss of the sense of touch |
| apselaphesis | medical, loss of the sense of touch |
| apsychia | medical, unconsciousness, fainting |
| apterial | ornithology, of the apteria, bare tracts |
| apteroid | entomology, resembling wingless insects |
| apterygotous | entomology, of the Apterygota |
| apyonin | chemistry, antiseptic dye (auramine) |
| apyrotype | mineralogy, a fire-resistant variety |
| aquameter | instrument for measuring water flow |
| aquavalent | chemistry, water-combining valence |
| aqueomercurial | chemistry, of water and mercury |
| aquintocubitalism | ornithology, lack of the 5th cubital remex |
| aquocapsulitis | medical, serous inflammation of the iris |
| aquocarbonic | chemistry, of water and carbon dioxide |
| aquocellolitis | medical, aqueous cellulitis of the eye |
| aquopentamminecobaltic | chemistry, cobalt ammine-aquo complex |
| aquotization | chemistry, replacement of ligands by water |
| aquotize | chemistry, to convert to an aquo compound |
| arabinic | chemistry, arabinic acid of gum arabic |
| arachnoidean | anatomy, of the arachnoid membrane |
| arachnopia | anatomy, arachnoid and pia mater together |
| araeotic | old medicine, attenuant, rarefying |
| araliad | botany, a plant of the aralia family |
| aralkylated | chemistry, bearing an aralkyl group |
| araneidal | zoology, of spiders (Araneida) |
| aranein | chemistry, principle of spider venom |
| arbusterin | chemistry, sterol from Arbutus |
| arbusterol | chemistry, sterol from Arbutus |
| arbutase | chemistry, enzyme splitting arbutin |
| archaecraniate | zoology, primitive craniate |
| archaeostoma | zoology, the primitive mouth, blastopore |
| archaeostomatous | zoology, having a persistent blastopore |
| archanthropine | anthropology, of primitive man |
| archencephalic | anatomy, of the archencephalon |
| archeostome | embryology, the blastopore |
| archibenthal | oceanography, of the archibenthos |
| archibenthos | oceanography, upper deep-sea zone |
| archiblast | embryology, formative protoplasm |
| archiblastic | embryology, of the archiblast |
| archiblastoma | medical, tumor of archiblastic tissue |
| archicerebrum | zoology, the primitive brain |
| archicleistogamous | botany, primitively cleistogamous |
The other lists filed alongside this one.
