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 |
|---|---|
| achilary | botany, lacking a lip or labellum |
| achillein | chemistry, bitter glucoside of yarrow |
| achrodextrinase | biochemistry, achroodextrin enzyme |
| achroglobin | biochemistry, colorless blood pigment |
| achroiocythaemia | medical, pallor of the blood, anemia |
| achroiocythemia | medical, pallor of the blood, anemia |
| achroma | medical, absence of pigmentation |
| achromatophilic | histology, refusing to take stains |
| achronychous | astronomy, occurring at nightfall |
| achroodextrinase | biochemistry, achroodextrin enzyme |
| achropsia | medical, color blindness |
| achymia | medical, deficiency of chyme |
| acichlorid | chemistry, an acid chloride |
| acichloride | chemistry, an acid chloride |
| acidology | medical, treatise on surgical instruments |
| acinacifoliate | botany, with scimitar-shaped leaves |
| acinacifolious | botany, scimitar-leaved |
| acinacious | botany, full of kernels |
| acinacity | botany, state of being full of kernels |
| acinetan | zoology, a suctorian protozoan |
| acinetarian | zoology, of the Acinetaria |
| acinetinan | zoology, a member of the Acinetina |
| acleistous | biology, not closed, open |
| acmaesthesia | medical, sensation of a point or prick |
| acnemia | medical, wasting of the calves |
| acoelomatous | zoology, lacking a body cavity |
| acoenaesthesia | medical, loss of bodily self-awareness |
| acoin | pharmacy, a local anesthetic |
| acoine | pharmacy, a local anesthetic |
| acomous | medical, bald, hairless |
| aconelline | chemistry, an aconite alkaloid |
| aconic | chemistry, aconic acid |
| aconin | chemistry, aconine, an aconite alkaloid |
| acopyrin | chemistry, aspirin-antipyrine salt |
| acopyrine | chemistry, aspirin-antipyrine salt |
| acouophonia | medical, auscultation with percussion |
| acquophonia | medical, variant of acouophonia |
| acraturesis | medical, retention from a weak bladder |
| acridic | chemistry, acridic acid from acridine |
| acridinic | chemistry, of acridine |
| acrindolin | chemistry, acrindoline |
| acrindoline | chemistry, an acridine-indole compound |
| acritol | chemistry, a sugar alcohol |
| acrobryous | botany, growing only at the apex |
| acrobystitis | medical, inflammation of the prepuce |
| acroconidium | mycology, conidium borne at a tip |
| acrodactyla | ornithology, upper surface of the toes |
| acrogamy | botany, fertilization at the apex |
| acrologism | linguistics, an acrologic usage |
| acrologue | linguistics, a word used acrologically |
| acromastitis | medical, inflammation of the nipple |
| acrometer | acro- + -meter, gauge of extremes |
| acromimia | medical, condition of the extremities |
| acromiodeltoid | anatomy, of acromion and deltoid |
| acromiohyoid | anatomy, of acromion and hyoid |
| acromiosternal | anatomy, of acromion and sternum |
| acroneurosis | medical, neurosis of the extremities |
| acronychous | zoology, claw-tipped, nailed at the tip |
| acronyx | medical, an ingrowing nail |
| acrorrheuma | medical, rheumatism of the extremities |
| acrosarc | botany, a pulpy berry like the grape |
| acrosarca | botany, plural of acrosarcum |
| acrosarcum | botany, a pulpy berry like the grape |
| acroscleriasis | medical, scleroderma of the extremities |
| acrosphacelus | medical, gangrene of the extremities |
| acrotic | medical, of acrotism, weak or absent pulse |
| acrotrophoneurosis | medical, trophoneurosis of extremities |
| actinoblast | zoology, cell forming a ray or spicule |
| actinocarp | botany, a radially symmetrical fruit |
| actinocarpic | botany, with radiately arranged fruit |
| actinocarpous | botany, radiate-fruited |
| actinocrinid | paleontology, crinoid of the Actinocrinidae |
| actinocutitis | medical, skin inflammation from radiation |
| actinodielectric | physics, dielectric altered by light |
| actinoelectrically | physics, by photoelectric action |
| actinogonidiate | botany, having radiate gonidia |
| actinographic | physics, of actinography |
| actinometrical | physics, of actinometry |
| actinomycesous | medical, caused by Actinomyces |
| actinomycestal | medical, of Actinomyces |
| actinomycosistic | medical, of actinomycosis |
| actinoneuritis | medical, neuritis caused by radiation |
| actinopraxis | medical, therapeutic use of radiation |
| actinopteran | zoology, a ray-finned fish |
| actinopterous | zoology, ray-finned |
| actinopterygious | zoology, having ray fins |
| actinosoma | zoology, radiate body of a coelenterate |
| actinostereoscopy | radiology, stereoscopic X-ray examination |
| actinostomal | zoology, of the actinostome (mouth) |
| actinotoxemia | medical, toxemia from radiation |
| acuaesthesia | medical, sensitivity to needle-prick |
| acuclosure | surgery, closure of an artery by needle |
| acuductor | surgery, a needle-guiding instrument |
| acuesthesia | medical, needle-prick sensibility |
| aculea | botany, a prickle |
| acusection | surgery, cutting with an electric needle |
| acusector | surgery, an electric cutting-needle |
| acutenaculum | surgery, a needle-holder |
| acutilobate | botany, having acute lobes |
| acutiplantar | ornithology, sharp-edged behind the tarsus |
The other lists filed alongside this one.
