单词 | sima |
释义 | sima sima1 —simatic /suy mat"ik/, adj. /suy"meuh/, n. Geol. an assemblage of rocks, rich in silica and magnesium, that constitutes the lower layer of the earth's crust and is found beneath the ocean floors and the sial of continents. [ < G (1909), equiv. to L si(licium) SILICIUM + ma(gnesium) MAGNESIUM] sima2 /suy"meuh/, n. Archit. the uppermost member of a full classical order, usually a cyma recta, representing a roof gutter; cymatium. [var. of CYMA] |
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