Meanings
nounpneumatode (plural pneumatodes)
plural pneumatodes
- biologyA group of cells with spiral secondary wall thickenings, present in a velamen; acts as an airway for gas exchange for respiration or photosynthesis
- biologyA group of cells presumed to be specialised as an airway for ventilation of particular tissues.
The roots of palms are characterised by pneumatodes on both underground and aerial roots. These have been supposed to ventilate the underground roots, but direct physiological evidence for this is lacking.
2015, R. H. V. Corley, P. B. H. Tinker, The Oil Palm, Wiley, →ISBN, page 144
Origin
- Ancient Greekπνεῦμα
- Englishpneumatode
From Ancient Greek πνεῦμα (pneûma) (breath) and ὁδός (hodós) (pathway)
More words from Ancient Greek
Full word history & related roots →Cite this entry
APA
pneumatode. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/pneumatode
MLA
“pneumatode.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pneumatode. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “pneumatode,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/pneumatode.
Source: pneumatode on Wiktionary, CC BY-SA 4.0.