English Words: M
36,575 words · Page 324 of 732
Any of a class of compounds derived from imidazole through replacement of a hydrogen by a methyl group.
Any methylated derivative of isoborneol, but especially (1R,3R,4R)-3,4,7,7-tetramethylbicyclo[2.2.1]heptan-3-ol
A toxic organic compound with molecular formula CH₃NCO, an intermediate in the production of carbamate pesticides.
An organic compound of the isocyanide family, mainly used for making five-membered heterocyclic rings.
Any of three isomeric methyl derivative of isoxazole, many derivatives of which are used as pharmaceuticals
2-methylindole, a mildly toxic and slightly flammable organic compound which occurs as a white solid and turns brown over time.
A particular toxic diterpenoid alkaloid found in many species of Delphinium (larkspurs).
Any of three methylation products of the amino acid lysine that play a role in epigenetics.
The univalent organometallic radical CH₃Mg- that is a part of several Grignard reagents
A dicarboxylic acid, a C-methylated derivative of malonic acid, HOOCCH(CH3)COOH , that is involved in the Krebs cycle
The organometallic cation CH₃Hg⁺; it is a toxicant that accumulates in the environment in the form of various compounds
A synthetic analogue of methaqualone with similar sedative and hypnotic properties.
A peripherally-acting μ-opioid antagonist that acts to reverse some of the side effects of opioid drugs such as constipation without affecting analgesia or precipitating withdrawals.
(normally 4'-O-methylnorhomosekikaic acid) A depside carboxylic acid with IUPAC name 3-((2,4-dihydroxy-6-propylbenzoyl)oxy)-2-hydroxy-4-methoxy-6-pentylbenzoic acid
The set of nucleic acid methylation modifications in an organism's genome or in a particular cell.
Any organism that uses simple methyl compounds (such as methane or methanol) as a source of carbon and of energy
Pertaining to organisms that use, as substrates for growth, C1 compounds (e.g. methanol, methylamine, methane).
A stimulant used to treat attention deficit hyperactivity disorder and narcolepsy, better known by the trade name Ritalin
Any of a class of highly toxic organophosphorus compounds characterized by the methylphosphonofluoridate chemical structure, including sarin and soman. They are potent cholinesterase inhibitors, often used as chemical weapons.
Spelling & Dictionary Insight
The English alphabetical index for the letter M contains 36,575 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 732 pages, and you are currently viewing page 324. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.
On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.
For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "M" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.