lunitidal interval

NOUN /,lunɪ'taɪdəl_'ɪntərvəl/
18 LETTERS · 6 SYLLABLES · STARTS WITH L

lunitidal interval is a valid 18-letter word worth 21 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
L1U1N1I1T1I1D2A1L1I1N1T1E1R1V4A1L1
1 + 1 + 1 + 1 + 1 + 1 + 2 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 4 + 1 + 1 =21 PTS
DOUBLE WORD → 42TRIPLE WORD → 63
MEANING

What does lunitidal interval mean?

NOUN · 1 SENSE
1

Interval between the moon's transit of a particular meridian and the next high tide at that meridian.