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 |
|---|---|
| monothelious | biology, having a single nipple |
| monotocardiac | zoology, of the Monotocardia |
| monotrichate | bacteriology, having a single flagellum |
| monotrichic | bacteriology, having a single flagellum |
| monotrochian | zoology, of the Monotrocha rotifers |
| monotrochous | zoology, having a single ciliary wreath |
| monotron | instrument for testing hardness |
| monozoan | zoology, of the Monozoa |
| monticoline | ecology, inhabiting mountains |
| monticuline | zoology, bearing small elevations |
| monticuliporidean | paleontology, of the Monticuliporidae bryozoans |
| monticuliporoid | paleontology, resembling Monticulipora |
| montigeneous | geology, produced by or born of mountains |
| morbiferal | medical, disease-bearing |
| morbify | medical, to produce disease |
| morbility | medical, liability or tendency to disease |
| morbillary | medical, relating to measles (morbilli) |
| mordelloid | entomology, resembling the beetle genus Mordella |
| morencite | mineralogy, mineral named for Morenci, Arizona |
| moringad | ichthyology, eel of the family Moringuidae |
| moringuoid | ichthyology, of the Moringuidae, worm eels |
| mormyrian | ichthyology, of the Mormyridae, elephantfishes |
| moromancy | divination by folly or nonsense |
| morosaurian | paleontology, of the dinosaur Morosaurus |
| morosauroid | paleontology, resembling Morosaurus |
| morphographist | biology, one who describes organic form |
| morphol | chemistry, a phenol from morphine |
| morpholin | chemistry, = morpholine |
| morphonomic | biology, of the laws of organic form |
| morphotonemics | linguistics, study of tone in morphology |
| morphotropy | crystallography, change of form on substitution |
| morrhuin | chemistry, alkaloid of cod-liver oil |
| morrhuine | chemistry, alkaloid of cod-liver oil |
| mosasaurian | paleontology, of the mosasaurs |
| motacil | ornithology, a wagtail (Motacilla) |
| motacilline | ornithology, of the wagtails |
| motofacient | physiology, producing motion |
| motomagnetic | physics, of motion and magnetism |
| moyite | petrology, a granitic rock (from Moya, Cuba) |
| mucedinaceous | mycology, of the Mucedines, mouldlike |
| mucedine | mycology, a mould or mildew |
| mucedineous | mycology, of the moulds |
| mucocellulose | chemistry, mucilaginous cellulose |
| mucocellulosic | chemistry, of mucocellulose |
| mucodermal | anatomy, of mucous membrane and skin |
| mucomembranous | medical, of the mucous membrane |
| mucorine | mycology, of the mould genus Mucor |
| mucorioid | mycology, resembling Mucor |
| mucorrhea | medical, excessive mucous discharge |
| mucorrhoea | medical, excessive mucous discharge |
| mucosocalcareous | medical, mucous and calcareous |
| mucosogranular | medical, mucous and granular |
| mucososaccharine | medical, mucous and saccharine |
| mucoviscoidosis | medical, cystic fibrosis (mucoviscidosis) |
| mucroniferous | botany, bearing a mucro |
| mucronulatous | botany, having a minute mucro |
| mucusin | chemistry, the principle of mucus |
| multicoccous | botany, having many cocci |
| multicordate | botany, with many heart-shaped parts |
| multicuspidated | dentistry, having many cusps |
| multidisperse | chemistry, of widely varied particle size |
| multifistular | having many tubes or fistulas |
| multifistulous | having many fistulas |
| multilaciniate | botany, with many lacinias |
| multilamellous | having many lamellae |
| multilirate | conchology, with many lirae |
| multimacular | having many spots or maculae |
| multinervate | botany, many-nerved |
| multinervose | botany, many-nerved |
| multiovulated | botany, having many ovules |
| multisacculate | zoology, having many small sacs |
| multispermous | botany, many-seeded |
| multisulcated | having many grooves or sulci |
| murasakite | petrology, a purple Japanese schist |
| muriciform | zoology, shaped like a murex shell |
| murionitric | old chemistry, muriatic + nitric (aqua regia) |
| muromontite | mineralogy, a variety of allanite |
| muscariform | botany, brush-shaped |
| muscicoline | botany, growing among mosses |
| muscovitize | mineralogy, to alter into muscovite |
| musculodermic | anatomy, of muscle and skin |
| musculofibrous | anatomy, of muscle and fibrous tissue |
| musculointestinal | anatomy, of the intestinal musculature |
| musculopallial | zoology, of the muscles and mantle |
| musophagine | ornithology, of the plantain-eaters |
| muspike | ichthyology, a pike of Canadian lakes |
| mustelin | zoology, of the weasel family |
| mustelinous | zoology, weasel-like, weasel-brown |
| muticate | botany, blunt, without a point |
| mutuant | civil law, the lender in a mutuum |
| mutulary | architecture, pertaining to mutules |
| myalia | medical, pain in the muscles |
| myarian | zoology, of the Myaria (clams) |
| myatonia | medical, lack of muscular tone |
| myatonic | medical, of myatonia |
| myatony | medical, muscular atony |
| myatrophy | medical, muscular atrophy |
| mycetogenesis | medical, production by fungi |
| mycetogenic | medical, caused by fungi |
| mycetous | mycology, fungoid, fungus-like |
The other lists filed alongside this one.
