photoperiod

Meanings

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

Words With Friends Score: 20

photoperiod is a valid Words With Friends word