| 单词 | dihedron |
| 释义 | dihedron in British English (daɪˈhiːdrən) noun another name for dihedral (sense 2) dihedral in British English (daɪˈhiːdrəl) adjective 1. having or formed by two intersecting planes; two-sided a dihedral angle noun 2. Also called: dihedron, dihedral angle the figure formed by two intersecting planes 3. the US name for corner (sense 2) 4. the upward inclination of an aircraft wing in relation to the lateral axis Compare anhedraldihedron in American English (daiˈhidrən) noun Geometry a figure formed by two intersecting planes Also called: dihedral, dihedral angle Word origin [1820–30; di-1 + -hedron]This word is first recorded in the period 1820–30. Other words that entered Englishat around the same time include: analogue, boomerang, exogenous, insider, karmadi- is a prefix occurring in loanwords from Greek, where it meant “two,” “twice,” “double”(diphthong). On this model, di- is freely used in the formation of compound words (dicotyledon; dipolar) and in chemical terms (diatomic; disulfide) |
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