English
actin
Actin comes from Ancient Greek ἀκτίς ‘ray’.
- Ancient Greekc. 800–300 BCEἀκτίςaktís‘ray’
- Englishtodayactin
attested reconstructed ? uncertain or disputed
Earlier history uncertain.
Lineage
- Ancient Greekc. 800–300 BCEἀκτίςaktís‘ray’
- Englishtodayactin
Formed from -in
Linked words
through Proto-Indo-European *negʷ- ‘bare, naked’
night, naked, nude, negro, noir, gymnastics, nigger, gymnasium, gymnast, nocturnal, naga, nox, denigrate, nocturne, nigella, nudism, 51 more
Today it means
noun A globular structural protein that polymerizes in a helical fashion to form an actin filament (or microfilament).
Language periods are conventional ranges, not dates for this word.
Etymograph / Ancient Greek ἀκτίς / actin