12-letter words containing m, a, d, r, s, t
- spermatocide — spermicide.
- spermatozoid — a motile male gamete produced in an antheridium.
- stamp dealer — someone who buys and sells postage stamps (to collectors)
- steam-driven — powered by steam
- storm-lashed — badly affected by storms
- superstardom — a person, as a performer or athlete, who enjoys wide recognition, is esteemed for exceptional talent, and is eagerly sought after for his or her services.
- surinam toad — a South American aquatic frog, Pipa pipa, the female of which carries the eggs and tadpoles in small depressions on its back.
- sweet dreams — sleep well
- the herdsman — the constellation Boötes
- thermostated — a device, including a relay actuated by thermal conduction or convection, that functions to establish and maintain a desired temperature automatically or signals a change in temperature for manual adjustment.
- third stream — a style of music that uses features of both jazz and classical music in an attempt to develop a new and distinctive musical idiom.
- thomas hardy — Godfrey Harold, 1877–1947, English mathematician.
- tinker's dam — the least value or merit; nothing or anything at all: It's not worth a tinker's damn.
- traducianism — the doctrine that the human soul is propagated along with the body. Compare creationism (def 3).
- transmundane — reaching beyond or existing outside the physical or visible world.
- trombidiasis — infestation with mites of the family Trombiculidae
- tryparsamide — a white, crystalline powder, C 8 H 10 O 4 N 2 AsNa·½H 2 , used chiefly in treating African sleeping sickness.
- understratum — a substratum.
- untransmuted — not transmuted; that has not been transmuted or transformed
- westmoreland — William Childs [chahyldz] /tʃaɪldz/ (Show IPA), 1914–2005, U.S. army officer: commander of U.S. forces in Vietnam and Thailand 1964–68.
- wild mustard — any of several weedy plants belonging to the genus Brassica, of the mustard family, as charlock.