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 |
|---|---|
| protomonostelic | botany, having a primitive monostele |
| protomyosinose | chemistry, first proteose from myosin |
| protonematoid | botany, resembling a protonema |
| protoneme | botany, the primary filament, protonema |
| protonephros | embryology, the primitive kidney |
| protoneuron | anatomy, a first-order neuron |
| protoneurone | anatomy, a first-order neurone |
| protonickel | chemistry, proto- compound of nickel |
| protopathia | medical, a primary disease |
| protopathy | medical, primary or original affection |
| protopepsia | medical, first-stage digestion |
| protoperlarian | entomology, of the order Protoperlaria |
| protopin | chemistry, the alkaloid protopine |
| protoprism | crystallography, the fundamental prism form |
| protoproteose | chemistry, first proteose of protein digestion |
| protopteran | zoology, lungfish of the genus Protopterus |
| protopteridophyte | botany, a primitive pteridophyte |
| protopterous | zoology, of the lungfish genus Protopterus |
| protopyramid | crystallography, the fundamental pyramid form |
| protore | geology, primary unenriched ore of a deposit |
| protorosauroid | paleontology, of the genus Protorosaurus |
| protorthopteran | entomology, of the extinct order Protorthoptera |
| protorthopteron | entomology, member of the Protorthoptera |
| protorthopterous | entomology, of the Protorthoptera |
| protosaurian | paleontology, of the Protosauria |
| protosilicon | chemistry, proto- compound of silicon |
| protosiphonaceous | botany, of the Protosiphonaceae |
| protospasm | medical, the initial spasm of a seizure |
| protostrontium | chemistry, proto- compound of strontium |
| protosyntonose | chemistry, first proteose from syntonin |
| protothecal | zoology, of the prototheca of a coral |
| prototitanium | chemistry, proto- compound of titanium |
| protovanadium | chemistry, proto- compound of vanadium |
| protovum | biology, a primitive ovum |
| protozoacidal | medical, destroying protozoa |
| protozoacide | medical, an agent that kills protozoa |
| protozoiasis | medical, infection with protozoa |
| protozoonal | zoology, of a protozoon |
| protracheate | zoology, of the Protracheata |
| proventricule | zoology, the proventriculus of a bird |
| provinculum | zoology, larval hinge of a bivalve shell |
| prowersite | petrology, a lamprophyre rock of Prowers Co. |
| proximobuccal | dentistry, of the proximal and buccal surfaces |
| proximolabial | dentistry, of the proximal and labial surfaces |
| proximolingual | dentistry, of the proximal and lingual surfaces |
| prozygapophysis | anatomy, the anterior zygapophysis |
| prunase | chemistry, enzyme splitting prunasin |
| prussin | chemistry, old name for cyanogen |
| prussine | chemistry, obsolete name for cyanogen |
| psalis | anatomy, the arch or fornix of the brain |
| psaloid | anatomy, arch-shaped, like a psalis |
| psammocarcinoma | medical, carcinoma containing sand bodies |
| psammocharid | entomology, a spider wasp of the Psammocharidae |
| psammogenous | geology, sand-producing |
| psammolithic | geology, of or like sandstone |
| psammophytic | botany, of sand-dwelling plants |
| psammosarcoma | medical, sarcoma containing sand bodies |
| pseudaconin | chemistry, alkaloid of aconite |
| pseudaconine | chemistry, alkaloid of aconite |
| pseudacusis | medical, false or disordered hearing |
| pseudalveolar | anatomy, falsely alveolar |
| pseudambulacral | zoology, of a pseudambulacrum |
| pseudambulacrum | zoology, a false ambulacrum of an echinoderm |
| pseudangina | medical, false angina pectoris |
| pseudankylosis | medical, false ankylosis of a joint |
| pseudaphia | medical, impaired sense of touch |
| pseudaposematic | biology, of false warning coloration |
| pseudaposporous | botany, showing false apospory |
| pseudapospory | botany, false apospory |
| pseudarachnidan | zoology, of the false arachnids |
| pseudataxic | medical, of pseudataxia |
| pseudelminth | medical, a body mistaken for a worm |
| pseudelytron | entomology, a false elytron |
| pseudencephalic | medical, of a pseudencephalus |
| pseudencephalus | teratology, fetus with a tumor for a brain |
| pseudepiploic | anatomy, of the pseudepiploon |
| pseudepiploon | anatomy, a false omentum |
| pseudepisematic | biology, of false recognition markings |
| pseudhaemal | zoology, of the false blood-vessels of worms |
| pseudhalteres | entomology, false halteres |
| pseudhemal | zoology, pseudhaemal, false blood-vessel |
| pseudimaginal | entomology, of the pseudimago stage |
| pseudisodomic | architecture, masonry of unequal courses |
| pseudoaconitine | chemistry, alkaloid of aconite |
| pseudoadiabatic | meteorology, of a pseudo-adiabatic process |
| pseudoalum | chemistry, alum-type salt with a divalent metal |
| pseudoalveolar | anatomy, falsely alveolar |
| pseudoangina | medical, false angina pectoris |
| pseudoankylosis | medical, false ankylosis of a joint |
| pseudoanthorine | chemistry, alkaloid of Aconitum anthora |
| pseudoataxia | medical, false ataxia |
| pseudobacterium | bacteriology, a body resembling a bacterium |
| pseudobasidium | mycology, a false basidium |
| pseudobenthonic | ecology, of the pseudobenthos |
| pseudobenthos | ecology, organisms only apparently benthic |
| pseudobrachia | zoology, false arms of anglerfishes |
| pseudobrachial | zoology, of a pseudobrachium |
| pseudobrachium | zoology, false arm of an anglerfish |
| pseudobranchiate | zoology, having a pseudobranch |
| pseudobutylene | chemistry, an isomer of butylene |
The other lists filed alongside this one.
