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 |
|---|---|
| aspidobranchiate | zoology, shield-gilled, of Aspidobranchiata |
| aspidomancy | divination by means of a shield |
| asplenioid | botany, resembling Asplenium, spleenwort-like |
| assyntite | petrology, igneous rock from Assynt, Scotland |
| astacian | zoology, a crayfish of the genus Astacus |
| astatizer | physics, device for making a needle astatic |
| asterial | zoology, pertaining to the starfish Asterias |
| asterin | chemistry, a substance obtained from starfish |
| asterioid | zoology, resembling a starfish |
| asterospondylic | zoology, of star-rayed vertebral calcification |
| asterospondylous | zoology, having asterospondylous vertebrae |
| asthenobiotic | biology, of weakened vitality or dormancy |
| asthenolith | geology, body of weakened rock at depth |
| asthenology | medical, the study of debility |
| asthenope | medical, one affected with asthenopia |
| asthenophobia | medical, morbid fear of weakness |
| astigmatizer | optics, lens that induces astigmatism |
| astigmatometer | medical, instrument measuring astigmatism |
| astigmatometry | medical, measurement of astigmatism |
| astigmatoscope | medical, instrument to detect astigmatism |
| astigmatoscopy | medical, examination for astigmatism |
| astigmometry | medical, measurement of astigmatism |
| astigmoscope | medical, astigmatism-detecting instrument |
| astomia | medical, congenital absence of the mouth |
| astraeid | zoology, coral of the family Astraeidae |
| astraeiform | zoology, shaped like an Astraea coral |
| astragalocentral | anatomy, of astragalus and centrum |
| astrean | zoology, of the star corals (Astraea) |
| astrose | botany, star-shaped |
| asyllabia | medical, inability to form syllables |
| asymmetranthous | botany, having asymmetric flowers |
| asymmetrocarpous | botany, with asymmetrical fruit |
| asyntrophy | medical, faulty growth from bad nutrition |
| atatschite | petrology, a felsitic Ural rock |
| ataxiagram | medical, record of ataxic movement |
| ataxiaphasia | medical, aphasia with ataxic speech |
| ataxinomic | biology, not based on classification |
| atelene | crystallography, of imperfect symmetry |
| atelocephalous | medical, with incomplete head |
| ateloglossia | medical, incomplete tongue |
| atelognathia | medical, incomplete jaw |
| atelomitic | cytology, not attached at chromosome end |
| atelopodia | medical, incomplete foot |
| ateloprosopia | medical, incomplete face |
| atelorachidia | medical, incomplete spinal column |
| atelostomia | medical, incomplete mouth |
| athericeran | entomology, fly of the Athericera |
| athericerous | entomology, of the Athericera |
| atheriogaean | biogeography, of Atheriogaea |
| athyria | medical, absence of the thyroid |
| athyrid | paleo., brachiopod of the Athyridae |
| athyroid | medical, without a thyroid gland |
| atlantite | petrology, a nepheline basanite |
| atlantodidymus | teratology, twins joined at the atlas |
| atmiatrics | medical, treatment by vapors |
| atmidalbumin | chemistry, albumin altered by steam |
| atmidometry | measurement of evaporation |
| atmocausis | medical, cauterization by steam |
| atmocautery | medical, steam cautery |
| atmoclastic | geology, broken up in place by weathering |
| atmogenic | geology, formed from the atmosphere |
| atmograph | instrument recording respiration |
| atmologic | physics, of atmology (science of vapor) |
| atmolyzation | chemistry, separation of gases |
| atmosteal | anatomy, of an atmosteon |
| atmosteon | anatomy, a pneumatic bone of birds |
| atomity | chemistry, number of atoms in a molecule |
| atopite | mineralogy, a calcium antimonate |
| atremate | zoology, of the Atremata |
| atrematous | zoology, of the Atremata |
| atrepsy | medical, marasmus of infants |
| atreptic | medical, of atrepsy, non-nutrition |
| atriocoelomic | anatomy, of atrium and coelom |
| atrioporal | zoology, of the atriopore |
| atroceruleous | descriptive, blackish-blue |
| atroceruleus | New Latin, dark blue (descriptive) |
| atrochal | zoology, larva without ciliary girdle |
| atrochous | zoology, lacking ciliated bands |
| atrolactic | chemistry, atrolactic acid |
| atropamine | chemistry, an atropine alkaloid |
| atrophous | medical, atrophied |
| atropic | chemistry, atropic acid |
| atrorubent | descriptive, dark red |
| atrosanguineous | descriptive, dark blood-red |
| attacolite | mineralogy, attakolite, a phosphate |
| attensity | psychology, clearness of a sensation |
| atticomastoid | anatomy, of tympanic attic and mastoid |
| atypy | medical, atypia, atypical character |
| auantic | medical, marked by drying or wasting |
| audivise | to transmit sound and sight, televise |
| audiviser | device for audivision |
| audivision | combined sound-and-sight transmission |
| auganite | petrology, an augite andesite |
| augitite | petrology, augite-rich basaltic rock |
| augitophyre | petrology, augite porphyry |
| aulacocarpous | botany, having furrowed fruit |
| aulophyte | botany, plant living in another's cavity |
| auribromide | chemistry, a gold bromide salt |
| aurichlorohydric | chemistry, of chlorauric acid |
| auricularian | zoology, of the auricularia larva |
The other lists filed alongside this one.
