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 |
|---|---|
| benzoxy | chemistry, benzoyloxy group |
| benzoxyacetic | chemistry, benzoxyacetic acid |
| benzoxycamphor | chemistry, benzoyloxy camphor |
| benzoxyphenanthrene | chemistry, benzoyloxy phenanthrene |
| benzoylformic | chemistry, benzoylformic acid |
| benzoylglycine | chemistry, hippuric acid |
| benzpinacone | chemistry, benzopinacol |
| benzthiophen | chemistry, benzothiophene |
| benztrioxazine | chemistry, benzo-fused trioxazine |
| berberid | botany, a plant of the barberry family |
| berengelite | mineralogy, a fossil resin |
| beresite | petrology, an altered granite |
| berginize | chemistry, hydrogenate coal (Bergius) |
| beringite | petrology, an alkaline igneous rock |
| bermudite | petrology, a Bermuda igneous rock |
| bersiamite | mineralogy, a mineral in -ite |
| berycine | ichthyology, of the Beryx fishes |
| berycoidean | ichthyology, a berycoid fish |
| berylate | chemistry, a beryllium salt |
| beryllonate | chemistry, salt of beryllonic acid |
| beryllosis | medical, beryllium lung disease |
| besiclometer | optics, instrument for fitting spectacles |
| betacaine | pharmacy, beta-eucaine anesthetic |
| betacismus | linguistics, betacism, b/v confusion |
| betainogen | chemistry, precursor of betaine |
| betorcin | chemistry, beta-orcin |
| betorcinol | chemistry, beta-orcinol |
| betulinamaric | chemistry, betulinamaric acid from birch |
| betulinol | chemistry, betulin alcohol from birch |
| biacetyl | chemistry, diacetyl |
| biacetylene | chemistry, diacetylene |
| biallyl | chemistry, diallyl |
| bianisidine | chemistry, dianisidine |
| biasteric | craniometry, between the two asteria |
| biborate | chemistry, an acid borate, as borax |
| bicarbide | chemistry, a two-carbon carbide |
| bicetyl | chemistry, dicetyl |
| bicompact | topology, compact in Alexandroff's sense |
| bielenite | mineralogy, an -ite mineral/rock name |
| bifara | music, a two-rank organ stop |
| biglenoid | anatomy, having two glenoid cavities |
| bignoniad | botany, a plant of the Bignoniaceae |
| bihydrazine | chemistry, bi- + hydrazine |
| bijugular | anatomy, of both jugulars |
| bilabe | surgery, two-lipped stone extractor |
| bilianic | chemistry, bilianic acid from bile |
| biliate | physiology, to charge with bile |
| bilifaction | physiology, the making of bile |
| bilification | physiology, formation of bile |
| bilify | physiology, to convert into bile |
| bilihumin | chemistry, humin from bile pigment |
| bilinigrin | chemistry, a dark bile pigment |
| bilipurpurin | chemistry, purple bile pigment |
| bilipyrrhin | chemistry, pyrrole bile pigment |
| bilirubinic | chemistry, of bilirubin |
| bilith | archaeology, two-stone monument |
| bilithon | archaeology, two-stone structure |
| biliverdic | chemistry, of biliverdin |
| bilixanthin | chemistry, yellow bile pigment |
| bimalar | anatomy, between the two malar bones |
| bimastic | anatomy, having two breasts |
| bimasty | anatomy, condition of having two breasts |
| bimodulus | mathematics, bi- + modulus |
| binotonous | zoology, consisting of two notes |
| bioblastic | biology, of a bioblast |
| biod | hypothetical vital force (cf. od) |
| biodyne | proposed unit of vital force |
| bioelectrogenetic | biology, of bioelectric generation |
| bioelectrogenetically | biology, in a bioelectrogenetic way |
| biogenase | chemistry, a supposed enzyme |
| biolite | geology, rock of organic origin |
| biophagism | biology, feeding on living organisms |
| biorgan | biology, a physiological organ |
| biosome | biology, a living body-unit |
| biosterin | chemistry, early name for vitamin A |
| biosterol | chemistry, a sterol (vitamin A) |
| bipaleolate | botany, having two paleolae |
| biplosion | phonetics, double explosion of a stop |
| biplosive | phonetics, doubly exploded consonant |
| biquartz | optics, two-plate quartz polarimeter |
| birefraction | optics, double refraction |
| birotatory | chemistry, showing double rotation |
| bisaxillary | botany, in two axils |
| bisdiapason | music, the double octave |
| bisdimethylamino | chemistry, bis(dimethylamino)- |
| bisglyoxaline | chemistry, bis-glyoxaline |
| bisiliquous | botany, bearing two siliques |
| bisinuation | having two sinuations |
| bisischiadic | anatomy, between the two ischia |
| bisischiatic | anatomy, between the two ischia |
| bismethyl | chemistry, bis-methyl |
| bismutoplagionite | mineralogy, bismuth sulfosalt |
| bismutosmaltite | mineralogy, bismuthian smaltite |
| bismutosphaerite | mineralogy, bismuth carbonate |
| bisphenoid | crystallography, a doubled sphenoid form |
| bisubstitution | chemistry, substitution at two positions |
| bisulcated | zoology, cloven-hoofed |
| bitolyl | chemistry, bi-tolyl |
| bitripinnatifid | botany, twice tripinnatifid |
| bitriseptate | botany, twice triseptate |
The other lists filed alongside this one.
