12-letter words containing m, a, c, h, i
- polycythemia — an abnormal increase in the number and concentration of circulating red blood corpuscles
- potichomania — the art or process of printing or using paint to decorate the inside of a glass vessel
- prochain ami — a next friend or next of kin
- prochein ami — next friend.
- psammophytic — relating to psammophytes
- psychomachia — conflict of the soul
- pyrochemical — pertaining to or producing chemical change at high temperatures.
- rachiotomies — Plural form of rachiotomy.
- rachmaninoff — Sergei Wassilievitch [sur-gey vuh-seel-yuh-vich;; Russian syir-gyey vuh-syee-lyi-vyich] /sɜrˈgeɪ vəˈsil yə vɪtʃ;; Russian syɪrˈgyeɪ vʌˈsyi lyɪ vyɪtʃ/ (Show IPA), 1873–1943, Russian pianist and composer.
- racing homer — a kind of homing pigeon used for racing
- ramapithecus — a genus of extinct Miocene ape known from fossils found in India and Pakistan and formerly thought to be a possible human ancestor.
- rhythmically — periodic, as motion, or a drumbeat.
- ring machine — a Linotype used primarily for making corrections.
- sandwich man — a person with advertising boards hung from the shoulders.
- scampishness — the quality of being scampish
- scheme-linda — A Scheme interface to Linda written by Ulf Dahlen of University of Edinburgh in 1990. It runs on the Computing Surface and the Symmetry.
- schistosomal — relating to or characteristic of a schistosome or member of the genus Schistosoma
- schizothymia — the condition of being schizoid or introverted. It encompasses elements of schizophrenia but does not involve the same depth of psychological disturbance
- schneiderman — Rose, 1884–1972, U.S. labor leader, born in Poland.
- scram switch — (jargon) (From the nuclear power industry) An emergency power-off switch (see Big Red Switch), especially one positioned to be easily hit by evacuating personnel. In general, this is *not* something you frob lightly; these often initiate expensive events (such as Halon dumps) and are installed in a dinosaur pen for use in case of electrical fire or in case some luckless field servoid should put 120 volts across himself while Easter egging. SCRAM stands for Safety Control Rod Ax Man. In the early days of nuclear power, boron moderator rods were raised and lowered on ropes. In the event of a runaway chain reaction, a man with an axe would chop the rope and drop the rods into the nuclear pile to stop the reaction. See also molly-guard, TMRC.
- scrimshander — a person who makes scrimshaw objects.
- scrimshanker — a shirker
- secd machine — Stack Environment Control Dump machine
- semiattached — partially attached; semidetached.
- semidetached — partly detached.
- shield match — a cricket match for the Sheffield Shield
- shrimp sauce — a sauce made from shrimps
- slot machine — a gambling machine operated by inserting coins into a slot and pulling a handle that activates a set of spinning symbols on wheels, the final alignment of which determines the payoff that is released into a receptacle at the bottom.
- sophomorical — characteristic of a sophomore
- spasmophilic — of or noting spasmophilia.
- spermaphytic — able to produce seeds
- spin machine — an organization or group of people acting together to present news or information in a way that creates a particular desired impression
- stichomythia — dramatic dialogue, as in a Greek play, characterized by brief exchanges between two characters, each of whom usually speaks in one line of verse during a scene of intense emotion or strong argumentation.
- sycophantism — a self-seeking, servile flatterer; fawning parasite.
- tampico hemp — a stiff fiber obtained from the leaves of various species of Agave, as A. falcata or A. sisalana.
- tape machine — a tape recorder.
- technomaniac — a person with an obsessional enthusiasm for technology
- tetramorphic — (in art) of or related to a composite representation of the four evangelists' symbols
- thalassaemic — a person who has the blood disorder thalassaemia
- thaumaturgic — pertaining to a thaumaturge or to thaumaturgy.
- the cambrian — the Cambrian period or rock system
- the-american — a novel (1877) by Henry James.
- thematically — of or relating to a theme.
- thermostatic — 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.
- thigmotactic — movement of an organism toward or away from any object that provides a mechanical stimulus.
- time charter — the hire of a ship or aircraft for a specified period
- time machine — a theoretical apparatus that would convey one to the past or future.
- timing chain — a chain for driving the camshaft of an internal-combustion engine from the crankshaft.
- trichogramma — any minute wasp of the genus Trichogramma, comprising a beneficial group of chalcidflies that parasitize the eggs of a variety of insect pests.
- trichromatic — pertaining to the use or combination of three colors, as in printing or in color photography.