nychthemeral
/nɪkˈθɛm.(ə.)ɹəl/
nychthemeral adjective: relating to or lasting a nychthemeron (a period of 24 hours).
Adjective
nychthemeral (not comparable)
- Relating to or lasting a nychthemeron (a period of 24 hours).
- Observations on sea-anemones in dimly lighted situations, such as under bridges and so forth, showed that these animals were more or less continuously expanded, but aside from such exceptions it was clear that Metridium in its natural surroundings exhibited a well-marked nychthemeral rhythm.1919, George Howard Parker, The Elementary Nervous System, Philadelphia: J. B. Lippincott & Co., →OCLC, page 163
Forms of nychthemeral
| alternative form | nycthemeral |
|---|---|
| alternative form | nyctohemeral |
| alternative form | nictemeral |
| alternative form | nuchthemerinal |
Origin of nychthemeral
From nychthemeron + -al.
Words formed from nychthemeral
Questions about nychthemeral
- What does nychthemeral mean?
- Nychthemeral means relating to or lasting a nychthemeron (a period of 24 hours).
- What part of speech is nychthemeral?
- Nychthemeral is an adjective.
- How do you pronounce nychthemeral?
- Nychthemeral is pronounced /nɪkˈθɛm.(ə.)ɹəl/.
Words near nychthemeral in the dictionary
Source and license
Adapted from Wiktionary: nychthemeral (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “nychthemeral.” Word.ws, https://word.ws/nychthemeral. Based on Wiktionary, CC BY-SA 4.0.