actinometry

NOUN
11 LETTERS · 5 SYLLABLES · STARTS WITH A

actinometry is a valid 11-letter word worth 18 points in Scrabble and 20 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1C3T1I1N1O1M3E1T1R1Y4
1 + 3 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 4 =18 PTS
DOUBLE WORD → 36TRIPLE WORD → 54
MEANING

What does actinometry mean?

NOUN · 1 SENSE
1

Measuring the intensity of electromagnetic radiation (especially of the sun's rays).