ammonia clock

NOUN
13 LETTERS · STARTS WITH A

ammonia clock is a valid 13-letter word worth 24 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1M3M3O1N1I1A1C3L1O1C3K5
1 + 3 + 3 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 3 + 5 =24 PTS
DOUBLE WORD → 48TRIPLE WORD → 72
MEANING

What does ammonia clock mean?

NOUN · 1 SENSE
1

An atomic clock based on vibrational frequency of the nitrogen atom in the ammonia molecule.