Periblast is valid Scrabble Word

Is periblast a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List NO
Collins Scrabble Words YES
Is periblast valid Words with Friends?
Words with Friends NO

9 letters word
13 points in Scrabble
16 points in WWF

Definitions for PERIBLAST in dictionary:

NOUN:

in meroblastic eggs, the margin of the blastoderm merging with the surrounding yolk
tissue surrounding blastoderm in meroblastic eggs

ADJECTIVE:

The protoplasmic matter which surrounds the entoblast, or cell nucleus, and undergoes segmentation.

Words related to PERIBLAST

periblasts14

Words that contain PERIBLAST

periblasts14

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