20-letter words that end in on
- superior conjunction — the alignment of an inferior planet and the sun in which the planet is at the far side of the sun from the earth.
- synchronous rotation — rotation of a satellite in which the period of rotation is equal to the period of orbit around its primary, leaving the same face always pointing toward the primary: The moon is in synchronous rotation about the earth.
- systemic circulation — the circulatory system in general.
- take up a collection — to get into one's hold or possession by voluntary action: to take a cigarette out of a box; to take a pen and begin to write.
- tchebycheff equation — a differential equation of the form (1 − x 2) d 2 y/dx 2 − x dy/dx + n 2 y = 0, where n is any nonnegative integer.
- teletype corporation — (company) The company which made Teletype teletypewriters. Address: Skokie, Illinois, USA.
- tenants' association — an organization of tenants, usually with a written constitution and charitable status, whose aim is to improve the housing conditions, amenities, community life, and contractual positions of its members
- the legal profession — the profession of law
- therapeutic abortion — abortion performed when a woman's pregnancy endangers her health.
- three-quarter nelson — a hold in which a wrestler, from a kneeling position behind a prone opponent, applies a half nelson with one arm, passes the other arm under the opponent's body on the near side, and locks the arms at the fingers or wrist on the back of the opponent's neck.
- to cross the rubicon — If you say that someone has crossed the Rubicon, you mean that they have reached a point where they cannot change a decision or course of action.
- too much information — I don't want to hear any more
- trimetric projection — a three-dimensional projection with three different linear scales at arbitrary angles.
- twenty-twenty vision — vision that is of normal acuity
- under the impression — If you are under the impression that something is the case, you believe that it is the case, usually when it is not actually the case.
- university education — a course of study undertaken and completed at a university
- university extension — a system by which an institution provides educational programs, as evening classes, for students otherwise unable to attend.
- vertical combination — the integration within one company of individual businesses working separately in related phases of the production and sale of a product.
- vertical integration — the joining together of all companies or firms involved in manufacturing a product into one company or firm
- vocalic alliteration — the commencement of two or more stressed syllables of a word group either with the same consonant sound or sound group (consonantal alliteration) as in from stem to stern, or with a vowel sound that may differ from syllable to syllable (vocalic alliteration) as in each to all. Compare consonance (def 4a).
- vocational education — educational training that provides practical experience in a particular occupational field, as agriculture, home economics, or industry.
- war of the rebellion — American Civil War.
- wardrobe malfunction — an embarrassing situation caused by the clothes a person is wearing
- western civilization — European culture, thought
- whyte classification — a system for classifying steam locomotives according to the total number of wheels on the front trucks, drivers, and rear trucks, in that order. For example, a Pacific locomotive is designated as 4-6-2.
- worker participation — a process by which subordinate employees, either individually or collectively, become involved in one or more aspects of organizational decision making within the enterprises in which they work
- zone of accumulation — B horizon.