segmentation nucleus

20 LETTERS · STARTS WITH S

segmentation nucleus is a valid 20-letter word worth 24 points in Scrabble and 33 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1E1G2M3E1N1T1A1T1I1O1N1N1U1C3L1E1U1S1

1 + 1 + 2 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =24 PTS

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does segmentation nucleus mean?