os /ˈɑs/
骨,孔,穴裂口
Os, n.; pl. Ora A mouth; an opening; an entrance.
Os n.; pl. Osar Geol. One of the ridges of sand or gravel found in Sweden, etc., supposed by some to be of marine origin, but probably formed by subglacial waters. The osar are similar to the kames of Scotland and the eschars of Ireland. See Eschar.
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os
n 1: a mouth or mouthlike opening
2: a hard brittle blue-gray or blue-black metallic element that
is one of the platinum metals; the heaviest metal known
[syn: osmium, atomic number 76]
3: (computer science) software that controls the execution of
computer programs and may provide various services [syn: operating
system]
4: the left eye [syn: oculus sinister]
5: rigid connective tissue that makes up the skeleton of
vertebrates [syn: bone]
[also: ossa (pl), osar (pl), ora (pl)]