Friday 16 November 2012

isotropic=آيزوتروبي

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isotropic=آيزوتروبي

ONLINE ETYMOLOGY DICTIONARY:

isotropic (adj.)
1864, from iso- + Gk. tropikos "belonging to a turning," from tropos "a turning, way, manner" (see trope).

iso-
word-forming element meaning "equal, similar, identical; isometric," from comb. form of Gk. isos "equal to, the same as" (e.g. isometor "like one's mother"). Used properly only with words of Greek origin; the Latin equivalent is equi- (see equi-).
trope (n.)
1530s, from L. tropus "a figure of speech," from Gk. tropos "turn, direction, turn or figure of speech," related to trope "a turning" and trepein "to turn," from PIE root trep- "to turn" (cf. Skt. trapate "is ashamed, confused," prop. "turns away in shame;" L. trepit "he turns"). Technically, in rhetoric, a figure of speech which consists in the use of a word or phrase in a sense other than that which is proper to it.


 
WIKIPEDIA:

Isotropy is uniformity in all orientations; it is derived from the Greek isos (ίσος, equal) and tropos (τρόπος, manner). Precise definitions depend on the subject area. Exceptions, or inequalities, are frequently indicated by the prefix an, hence anisotropy. Anisotropy is also used to describe situations where properties vary systematically, dependent on direction. Isotropic radiation has the same intensity regardless of the direction of measurement, and an isotropic field exerts the same action regardless of how the test particle is oriented.

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