Meanings
Synonyms & antonyms
nounThe median plate of the plastron of turtles.
Origin
Coined by Thomas Henry Huxley in 1872 as ento- + plastron. Superseded the earlier entosternum, a nominalised form of the French adjective entosternal, coined by Étienne Geoffroy Saint-Hilaire in 1818. The prefix is from Ancient Greek ἐντός (entós, “inner”), in reference to its position as the unpaired bone at the centre of the plastron.
Full word history & related roots →Cite this entry
entoplastron. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/entoplastron
“entoplastron.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/entoplastron. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “entoplastron,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/entoplastron.
Source: entoplastron on Wiktionary, CC BY-SA 4.0.