chambered nautilus

NOUN
18 LETTERS · 4 SYLLABLES · STARTS WITH C

chambered nautilus is a valid 18-letter word worth 27 points in Scrabble and 33 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
C3H4A1M3B3E1R1E1D2N1A1U1T1I1L1U1S1
3 + 4 + 1 + 3 + 3 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =27 PTS
DOUBLE WORD → 54TRIPLE WORD → 81
MEANING

What does chambered nautilus mean?

NOUN · 1 SENSE
1

Cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions.