Definition of os
English to English noun - a mouth or mouthlike opening
source: WordNet 3.0 - a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
source: WordNet 3.0 - (computer science) software that controls the execution of computer programs and may provide various services
source: WordNet 3.0 - the left eye
source: WordNet 3.0 - rigid connective tissue that makes up the skeleton of vertebrates
source: WordNet 3.0 - A bone.
source: Webster 1913 - A mouth; an opening; an entrance.
source: Webster 1913 - 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.
source: Webster 1913
Visual Synonyms 
Nearby Word
os, oss, oas, ois, oso, ochs, ouse, osha, owse, osse, osaka, osage, oxshoe, ox, ok, osasco, osages, o, siya, oquassa, osseous
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