Etymology
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morphogeny (n.)

in Haeckel's system, biological development of the forms of organisms, 1851; see morpho- + -geny.

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monorail (n.)

"single-rail railway system," 1885, from French; a hybrid; see mono- + rail (n.1).

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decimalization (n.)

also decimalisation, "act of reducing to a decimal system" (especially of currency), 1842; see decimal + -ization.

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decolonialize (v.)

"to rid of the system or qualities of colonialism," by 1955; see  de- + colonial + -ize. Related: Decolonialization.

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musculature (n.)

"system of muscles considered with reference to its origin and development," 1875, from French musculature, from Latin musculus (see muscle (n.)).

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Guidonian (adj.)

1721, in reference to the system of musical notation devised by Guido d'Arezzo, who lived early 11c.

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macadamization (n.)

"process of laying roads according to the system of John L. McAdam;" 1824, noun of action from macadamize (see macadam).

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Windows (n.)

the computer operating system by Microsoft was introduced in 1985 and modified thereafter; it was predominant by c. 1995.

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propagandist (n.)

"one who devotes himself to the spread of any system of principles," 1797, from propaganda + -ist. Related: Propagandistic; propagandism.

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ecosystem (n.)

1935; see eco- + system. Perhaps coined by English ecologist Sir Arthur George Tansley (1871-1955).

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