Semidiurnal is valid Scrabble Word

Is semidiurnal a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is semidiurnal valid Words with Friends?
Words with Friends YES

11 letters word
14 points in Scrabble
18 points in WWF

Definitions for SEMIDIURNAL in dictionary:

ADJECTIVE:

relating to or accomplished in half a day
pertaining to, consisting of, or accomplished in half a day.
occurring every 12 hours or twice each day.
Pertaining to, or accomplished in, half a day, or twelve hours; occurring twice every day.
Pertaining to, or traversed in, six hours, or in half the time between the rising and setting of a heavenly body; as, a semidiurnal arc.

Similar words containing DIURN without suffix al and without prefix semi

diurnal8 diurnals9 diurnally13 diurnalist11 diurnalists12

Find what other words can be done using letters: "semidiurnal"
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