13-letter words containing a, c, h, r, o, i
- metachromasia — A characteristic change in the colour of staining carried out in biological tissues, exhibited by certain aniline dyes when they bind to particular substances present in these tissues, called chromotropes.
- metachromatic — change of color, especially that due to variation in the temperature of a body.
- metamorphotic — Of or relating to metamorphosis.
- metaphoricity — The power of a metaphor.
- microcephalia — Microcephaly.
- microcephalic — having a head with a small braincase.
- microcephalus — An abnormally small head.
- microchip art — (hardware) (chip art, chip graffiti) Images etched on integrated circuits purely for decoration, visible only under a microscope.
- micrographics — the technique of photographing written or printed pages in reduced form to produce microfilm or microfiche.
- microhabitats — Plural form of microhabitat.
- microlecithal — having a small amount of yolk, as certain eggs or ova.
- microteaching — a scaled-down teaching procedure with a few students under controlled conditions, often videotaped in order to analyze teaching techniques and develop new teaching skills.
- mitochondrial — (cytology) Of, or relating to mitochondria.
- monarchianism — any of several doctrines of the Christian church in the 2nd and 3rd centuries a.d., emphasizing the unity of God by maintaining that the Father, the Son, and the Holy Ghost are three manifestations or aspects of God.
- monarchically — In a monarchic or monarchical fashion.
- monochromatic — of or having one color.
- morning watch — the watch from 4 a.m. until 8 a.m.
- morphemically — By means of, or in terms, of morphemes.
- morphological — the branch of biology dealing with the form and structure of organisms.
- musicotherapy — the treatment of mental disorders with music
- nanochemistry — (chemistry) The synthesis, analysis and characterization of chemical compounds at the nanoscale.
- narcohypnosis — the use of drugs to induce hypnosis
- necrophiliacs — Plural form of necrophiliac.
- nephrological — of or relating to nephrology
- neurochemical — of or relating to neurochemistry.
- non-cathartic — of or relating to catharsis.
- non-christian — (of a person, country, etc) not adhering to the Christian faith
- non-chromatic — pertaining to color or colors.
- non-rheumatic — pertaining to or of the nature of rheumatism.
- non-spherical — having the form of a sphere; globular.
- nonhistorical — Not based on or drawn from history.
- nonhysterical — not hysterical or funny
- nontheatrical — not relating to the theatre
- normocephalic — Having a normal sized head; neither macrocephalic nor microcephalic; mesocephalic.
- north african — the northern part of Africa, especially the region north of the tropical rain forest and comprised of Morocco, Algeria, Tunisia, Libya, and that part of Egypt west of the Gulf of Suez.
- north america — the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 feet (6187 meters); lowest, Death Valley, 276 feet (84 meters) below sea level. About 9,360,000 sq. mi. (24,242,400 sq. km).
- north chicago — a city in NE Illinois, on Lake Michigan.
- nouveau riche — a person who is newly rich: the ostentation of the nouveaux riches of the 1920s.
- oceanographic — the branch of physical geography dealing with the ocean.
- ochlocratical — Pertaining to ochlocracy.
- opisthobranch — any gastropod mollusk of the order Opisthobranchia, as the sea slugs, sea butterflies, and sea hares, characterized by a vestigial or absent mantle and shell and two pairs of tentacles.
- oprahfication — the perceived increase in people’s desire to discuss their emotions or personal problems, attributed to the influence of confessional television programmes
- orchestra pit — musicians' seating in front of stage
- orchestra-pit — a group of performers on various musical instruments, including especially stringed instruments of the viol class, clarinets and flutes, cornets and trombones, drums, and cymbals, for playing music, as symphonies, operas, popular music, or other compositions.
- orchestralist — a person who writes or arranges orchestral music
- orchestrating — Present participle of orchestrate.
- orchestration — (uncountable) the arrangement of music for performance by an orchestra.
- orchid family — the plant family Orchidaceae, characterized by terrestrial or epiphytic herbaceous plants having simple, parallel-veined, usually alternate leaves, complex and often large and showy flowers pollinated primarily by insects, and fruit in the form of a capsule containing numerous minute seeds, and including calypso, fringed orchis, lady's-slipper, pogonia, rattlesnake plantain, vanilla, as well as numerous tropical orchids such as those of the genera Cattleya, Cymbidium, Dendrobium, Phalaenopsis, and Vanda.
- orchidomaniac — a person who is obsessed with or has a passion for orchids
- ornithischian — any herbivorous dinosaur of the order Ornithischia, having a pelvis resembling that of a bird. Compare saurischian.