Ostium is valid Scrabble Word

Is ostium a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is ostium valid Words with Friends?
Words with Friends YES

6 letters word
8 points in Scrabble
10 points in WWF

Definitions for OSTIUM in dictionary:

NOUN:

(Latin) the mouth of a river; a mouthlike opening
an opening into a vessel or cavity of the body.
each of a number of pores in the wall of a sponge, through which water is drawn in.
pore in sponges through which water enters the body
An opening; a passage.

OTHER DEFINITIONS:

an opening in a bodily organ

Words related to OSTIUM

ostia5 ostial6

Find what other words can be done using letters: "ostium"
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