photoperiod

Plural: photoperiods

Noun

The normal duration of natural daylight experienced by an organism; daylength

Origin / Etymology

From photo- + period.

Synonyms

day, daylength, daytime

Antonyms

nighttime, scotoperiod

Scrabble Score: 19

photoperiod: valid Scrabble (US) TWL Word
photoperiod: valid Scrabble Word in Merriam-Webster MW Dictionary
photoperiod: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 20

photoperiod: valid Words With Friends Word