splice grafting

15 LETTERS · STARTS WITH S

splice grafting is a valid 15-letter word worth 23 points in Scrabble and 29 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1P3L1I1C3E1G2R1A1F4T1I1N1G2

1 + 3 + 1 + 1 + 3 + 1 + 0 + 2 + 1 + 1 + 4 + 1 + 1 + 1 + 2 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does splice grafting mean?