time-delay measuring instrument

NOUN
31 LETTERS · STARTS WITH T

time-delay measuring instrument is a valid 31-letter word worth 39 points in Scrabble and 48 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
T1I1M3E1-0D2E1L1A1Y4M3E1A1S1U1R1I1N1G2I1N1S1T1R1U1M3E1N1T1
1 + 1 + 3 + 1 + 0 + 2 + 1 + 1 + 1 + 4 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 =39 PTS
DOUBLE WORD → 78TRIPLE WORD → 117
MEANING

What does time-delay measuring instrument mean?

NOUN · 1 SENSE
1

Chronoscope for measuring the time difference between two events.