nycthemeral
/nɪkˈθɛm(ə)rəl/ /nɪkˈθɛm(ə)r(ə)l/(also nychthemeral) Chiefly Biology and Physiology
adjective
Designating or characterized by a variation that occurs in a period of twenty-four hours, especially corresponding to the contrast between day and night.
Origin
Early 20th century; earliest use found in Nature: a weekly journal of science. From nycthemer- + -al. Compare French nyctéméral, nycthéméral.
- parti-generic
- partigiano
- partihued
- partile
- parting
- parting bead
- parting cup
- parting line
- parting of the ways
- parting plane
- parting rail
- parting sand
- parting shard
- parting shot
- parting slip
- parting strip
- parting tool
- parti-partial
- parti pris
- Parti Quebecois
- Parti Québecois
- Parti Québécois
- partisan
- partisanery
- partisanism