12-letter words containing m, a, c, r, t, h
- microhabitat — an extremely localized, small-scale environment, as a tree stump or a dead animal.
- misanthropic — of, relating to, or characteristic of a misanthrope.
- mitochondria — an organelle in the cytoplasm of cells that functions in energy production.
- mole-catcher — someone or something who catches, traps, or kills moles
- monochromats — Plural form of monochromat.
- monotrichate — (of bacteria) having a single flagellum at one pole.
- mother craft — a spaceship providing facilities and supplies for a number of smaller craft, or for astronauts
- motor launch — a small naval vessel that chases submarines, etc
- myrtle beach — a town in E South Carolina.
- niche market — specific or limited consumer interest
- no match for — If one person or thing is no match for another, they are unable to compete successfully with the other person or thing.
- normal pitch — relative point, position, or degree: a high pitch of excitement.
- nychthemeral — relating to a nychthemeron or to the changes or differences, specifically those relating to day and night, that occur within this span
- on the march — If a group of soldiers are on the march, they are marching somewhere.
- ornithomancy — Divination by means of birds, their flight, etc.
- overemphatic — excessive or undue emphasis.
- panchromatic — sensitive to all visible colors, as a photographic film.
- parchmentize — to treat (paper or the like) so that it resembles parchment.
- perichaetium — a leafy cluster (bracts) around the base of the reproductive organs of some plants, predominantly mosses
- pharmaceutic — pertaining to pharmacy or pharmacists.
- pharmacolite — hydrous calcium arsenate, 2CaO⋅As 2 O 5 ⋅5H 2 O, formed by natural alteration of mineral deposits containing arsenopyrite and arsenical ores of cobalt and silver.
- plasma torch — an electrical device for converting a gas into a plasma, used for melting metal
- rachiotomies — Plural form of rachiotomy.
- ramapithecus — a genus of extinct Miocene ape known from fossils found in India and Pakistan and formerly thought to be a possible human ancestor.
- reattachment — connecting or fastening again
- return match — sport: second game between same teams
- rhamphotheca — the horny covering of a bird's bill.
- rhythmically — periodic, as motion, or a drumbeat.
- rubber match — rubber2 (def 4)
- schoolmaster — a man who presides over or teaches in a school.
- 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.
- scratch mark — the mark left by a scratch
- spermaphytic — able to produce seeds
- star chamber — a former court of inquisitorial and criminal jurisdiction in England that sat without a jury and that became noted for its arbitrary methods and severe punishments, abolished 1641.
- stomach worm — a nematode, Haemonchus contortus, parasitic in the stomach of sheep, cattle, and related animals.
- stretch mark — a silvery streak occurring typically on the abdomen or thighs and caused by stretching of the skin over a short period of time, as during pregnancy or rapid weight gain.
- stretchmarks — marks that remain visible on the abdomen after its distension, esp in pregnancy
- tetrachotomy — the segmentation of something into four parts
- tetradrachma — a silver coin of ancient Greece, equal to four drachmas.
- tetramorphic — (in art) of or related to a composite representation of the four evangelists' symbols
- thaumaturgic — pertaining to a thaumaturge or to thaumaturgy.
- the cambrian — the Cambrian period or rock system
- the-american — a novel (1877) by Henry James.
- 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.
- thoracectomy — excision of part or all of a rib.
- thoracostomy — the construction of an artificial opening through the chest wall, usually for the drainage of fluid or the release of an abnormal accumulation of air.
- time charter — the hire of a ship or aircraft for a specified period
- tracheostomy — the construction of an artificial opening through the neck into the trachea, usually for the relief of difficulty in breathing.
- trachomatous — a chronic, contagious infection of the conjunctiva and cornea, characterized by the formation of granulations and scarring and caused by the bacterium Chlamydia trachomatis.
- transhumance — the seasonal migration of livestock, and the people who tend them, between lowlands and adjacent mountains.