~ 1 [ ɒs ]
■ noun ( plural ~sa 'ɒsə ) Anatomy a bone (used chiefly in Latin names of individual bones, e.g. ~ trapezium ).
Origin
from L.
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~ 2 [ ɒs ]
■ noun ( plural ora 'ɔ:rə ) Anatomy an opening or entrance to a passage.
Origin
C18: from L. ~ 'mouth'.