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 |
|---|---|
| pyralidid | entomology, a pyralid moth |
| pyralidiform | entomology, shaped like a pyralid moth |
| pyramidoattenuate | descriptive, pyramidal and tapering |
| pyramidoprismatic | crystallography, pyramidal and prismatic |
| pyranyl | chemistry, the radical of pyran |
| pyrenematous | botany, having a nucleus or pyrene |
| pyrenin | cytology, the substance of the nucleolus |
| pyrenocarp | botany, a stone fruit; a fungal perithecium |
| pyrenocarpic | botany, bearing pyrenocarps |
| pyrenodean | lichenology, of lichens bearing perithecia |
| pyrenodeine | lichenology, of lichens bearing perithecia |
| pyrenodeous | lichenology, having perithecia |
| pyreticosis | medical, a febrile condition |
| pyretography | medical, a description of fevers |
| pyretologist | medical, a specialist in fevers |
| pyretolysis | medical, the abatement of fever |
| pyrgocephalic | craniometry, tower-skulled |
| pyrgocephaly | medical, tower-shaped skull |
| pyrgologist | one who studies towers |
| pyrheliophor | physics, apparatus concentrating solar heat |
| pyric | of or produced by fire or burning |
| pyridinize | chemistry, to treat with pyridine |
| pyrimidyl | chemistry, the radical of pyrimidine |
| pyroarsenious | chemistry, of pyroarsenious acid |
| pyroarsenite | chemistry, a salt of pyroarsenious acid |
| pyrocatechinol | chemistry, pyrocatechin, catechol |
| pyrocatechuic | chemistry, of pyrocatechuic acid |
| pyrochromate | chemistry, a dichromate salt |
| pyrochromic | chemistry, of pyrochromic or dichromic acid |
| pyrocinchonic | chemistry, of pyrocinchonic acid |
| pyrocomenic | chemistry, of pyrocomenic acid |
| pyrocondensation | chemistry, condensation brought about by heat |
| pyrocrystalline | geology, crystallized from a molten magma |
| pyrodine | chemistry, acetylphenylhydrazine |
| pyrogenation | chemistry, decomposition by heat |
| pyrogenesia | medical, the generation of heat or fever |
| pyrogenetically | medical, in a heat- or fever-producing manner |
| pyroguaiacin | chemistry, product of distilled guaiacum resin |
| pyroline | chemistry, an oily product of destructive distillation |
| pyromeconic | chemistry, of pyromeconic acid |
| pyromorphism | geology, metamorphism by heat |
| pyromotor | engineering, a heat-driven motor |
| pyromucyl | chemistry, radical of pyromucic acid |
| pyronaphtha | chemistry, a petroleum illuminating oil |
| pyronyxis | medical, puncture with a hot needle |
| pyrophosphatic | chemistry, of pyrophosphates |
| pyrophosphorous | chemistry, pyrophosphorous acid |
| pyrophotograph | a photograph made by a heat process |
| pyrophotometer | instrument measuring heat by its light |
| pyrophysalite | mineralogy, a coarse variety of topaz |
| pyropuncture | medical, puncture with a cautery |
| pyroracemate | chemistry, salt of pyroracemic acid |
| pyroracemic | chemistry, old name for pyruvic acid |
| pyroscopy | measurement of high temperatures |
| pyrosomoid | zoology, resembling Pyrosoma |
| pyrostereotype | printing, stereotype made by heat |
| pyrosulphuryl | chemistry, the pyrosulphuric radical |
| pyrotantalate | chemistry, salt of pyrotantalic acid |
| pyroterebic | chemistry, pyroterebic acid |
| pyrotritartric | chemistry, pyrotritartaric acid |
| pyrovanadate | chemistry, salt of pyrovanadic acid |
| pyroxonium | chemistry, an oxonium-type ion |
| pyroxylene | chemistry, xylene from dry distillation |
| pyrrhotism | anthropology, the state of being red-haired |
| pyrrhotist | anthropology, a red-haired person |
| pyrrodiazole | chemistry, old name for pyrazole |
| pyrrolidyl | chemistry, the pyrrolidine radical |
| pyrrolylene | chemistry, old name for butadiene |
| pyrrophyllin | chemistry, a chlorophyll derivative |
| pyrroporphyrin | chemistry, a porphyrin from chlorophyll |
| pyrrotriazole | chemistry, a triazole derivative |
| pyrroyl | chemistry, the pyrrole acyl radical |
| pyrrylene | chemistry, divalent pyrrole radical |
| pyruline | zoology, pertaining to Pyrula |
| pyruloid | zoology, shaped like a Pyrula shell |
| pythogenetic | medical, bred of filth or decay |
| pythogenous | medical, produced by putrefaction |
| pythoniform | zoology, python-shaped |
| pythonine | zoology, of or like the pythons |
| pythonomorphic | zoology, of the Pythonomorpha, mosasaurs |
| pythonomorphous | zoology, mosasaur-like |
| quadragintesimal | mathematics, of the fortieth |
| quadratiferous | zoology, bearing a quadrate bone |
| quadrauricular | zoology, having four auricles |
| quadricapsulate | botany, having four capsules |
| quadricotyledonous | botany, with four cotyledons |
| quadricrescentic | zoology, with four crescentic ridges |
| quadricuspidal | anatomy, having four cusps |
| quadriderivative | chemistry, a fourfold substitution product |
| quadrifolious | botany, four-leaved |
| quadrinomical | mathematics, consisting of four terms |
| quadrioxalate | chemistry, an acid oxalate salt |
| quadripulmonary | zoology, four-lunged, as some spiders |
| quadrisulcated | zoology, marked with four grooves |
| quadrisulphide | chemistry, a sulphide with four S atoms |
| quadrisyllabous | prosody, of four syllables |
| quadrupedate | zoology, four-footed |
| quadrupedation | the gait of a four-footed animal |
| quebrachite | chemistry, sugar alcohol from quebracho |
| quenite | mineralogy, a mineral name in -ite |
The other lists filed alongside this one.
