13-letter words containing m, a, t, h, r
- bohr magneton — a unit that is used to indicate the magnetic moment of the electron structure in an atom, equal to 9.27 × 10 −21 erg/gauss.
- brahminy kite — a common kite, Haliastur indus, of southern Asia and the southwest Pacific islands, having reddish-brown plumage with a white head and breast.
- carboxymethyl — (organic chemistry) The univalent radical -CH2-COOH derived from acetic acid.
- carpetmuncher — Alternative form of carpet muncher.
- cash customer — a purchaser who pays cash rather than by check, credit card, or charge account.
- catastrophism — an old doctrine, now discarded, that the earth was created and has subsequently been shaped by sudden divine acts which have no logical connection with each other rather than by gradual evolutionary processes
- cecropia moth — a large North American saturniid moth, Hyalophora (or Samia) cecropia, with brightly coloured wings and feathery antennae
- cephalometric — Relating to cephalometrics.
- chase mortise — a mortise having one inclined narrow side.
- cheiromantist — A chiromancer.
- chemautotroph — an organism, such as a bacterium, that obtains its energy from inorganic reactions using simple compounds, such as ammonia or hydrogen sulphide
- cherry tomato — a miniature tomato not much bigger than a cherry
- chimneybreast — the wall or walls that surround the base of a chimney or fireplace
- chiromantical — Of or pertaining to chiromancy.
- chloromethane — methyl chloride.
- cholesteremia — cholesterolemia.
- chondromatous — a benign cartilaginous tumor or growth.
- chrematistics — Study of wealth.
- chrestomathic — (of teaching or learning) That has a practical use.
- christmas box — a tip or present given at Christmas, esp to postmen, tradesmen, etc
- christmas day — Christmas Day is the 25th of December, when Christmas is celebrated.
- christmas eve — Christmas Eve is the 24th of December, the day before Christmas Day.
- christmastide — the festival season from Christmas to after New Year's Day.
- christmastime — the Christmas season, traditionally from Christmas Eve through New Year's Day or to Epiphany (Jan. 6)
- chromatically — In a chromatic manner.
- chromaticness — the attribute of colour that involves both hue and saturation
- chromatograms — Plural form of chromatogram.
- chromatograph — a piece of equipment that provides the outcome of a chromatographic test
- chromatolysis — the dissolution of stained material, such as chromatin in injured cells
- chromatolytic — relating to chromatolysis
- chromatophile — Also, chromophilic, chromophilous [kroh-mof-uh-luh s] /kroʊˈmɒf ə ləs/ (Show IPA), chromatophilic, chromatophilous. staining readily.
- chromatophore — a cell in the skin of frogs, chameleons, etc, in which pigment is concentrated or dispersed, causing the animal to change colour
- chromesthesia — (neurology, psychology) sound-to-color synaesthesia.
- chromotherapy — the use of colour and light as a restorative therapy and to promote mental and physical well-being
- chrysanthemum — A chrysanthemum is a large garden flower with many long, thin petals.
- cinematograph — a combined camera, printer, and projector
- city chambers — (in Scotland) the municipal building of a city; town hall
- climatography — an account of a region's climate
- coal merchant — a person engaged in the purchase and sale of coal for profit
- compass north — magnetic north, as indicated on a particular compass at a given moment.
- cotton mather — Cotton, 1663–1728, American clergyman and author.
- craftsmanship — Craftsmanship is the skill that someone uses when they make beautiful things with their hands.
- death chamber — a room in which someone has died
- demochristian — a member or supporter of a Christian democratic party or movement
- dermatography — a treatise or writing concerning the skin
- dermatophytes — Plural form of dermatophyte.
- deutsche mark — the former basic monetary unit of Germany, superseded in 2002 by the euro
- diaphanometer — an instrument used to measure transparency, esp of the atmosphere
- diaphragmatic — of the diaphragm.
- diaphragmitis — inflammation of the diaphragm, phrenitis