Os

Origin 1

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

Full definition of os

Noun

os

(plural ossa)

(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)

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

Origin 3

Swedish

Noun

os

An osar or esker.

Anagrams

SO, So, So., s.o., s/o, so