Theaetetus.
A classical Greek mathematician credited with proving that there are precisely five regular convex polyhedra.
Meaning & usage
A classical Greek mathematician credited with proving that there are precisely five regular convex polyhedra.
A later middle dialogue of Plato concerning epistemology.
A lunar impact crater 2.8 kilometres in depth and 25 kilometres in diameter, located southeast of the crater Cassini, near the eastern edge of Mare Imbrium.
Where this word comes from
From Ancient Greek Θεαίτητος (Theaítētos); the mathematician is the eponym of the dialogue and the lunar crater.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.