• Os

    Origin 1

    From neuter Latin word os (genitive ossis) meaning "bone".

    Full definition of os

    Noun

    os

    (plural ossa)
    1. (rare, medicine) Bone.

    Usage notes

    Only used by doctors and surgeons when practising. Not used by medical laymen.

    Origin 2

    From neuter Latin word os with the genitive oris (meaning "mouth").

    Noun

    os

    (plural ora)
    1. (rare) A mouth; an opening.
    2. In particular, either end of the cervix, internal (to the uterus) or external (to the vagina).

    Origin 3

    Swedish

    Noun

    os

    1. An osar or esker.

    Anagrams

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