Langimage
English

athecate

|a-the-cate|

C2

/əˈθiːkeɪt/

without a sheath/case

Etymology
Etymology Information

'athecate' originates from Greek, specifically from the elements 'a-' (not) and 'thekē' (Greek: 'θήκη') meaning 'case' or 'sheath'.

Historical Evolution

'athecate' was coined in New Latin/scientific English from Greek roots: Greek 'thekē' passed into Latin/Neo-Latin as 'theca', and the negative prefix 'a-' was added to form terms meaning 'without a theca', eventually entering modern scientific English as 'athecate'.

Meaning Changes

Initially it meant 'without a case or sheath' (the literal negative of 'thecate'); over time the meaning has remained essentially the same but become specialized to biological/taxonomic contexts.

Meanings by Part of Speech

Adjective 1

lacking a theca (a protective case or sheath); used especially in zoology and botany to describe organisms (e.g., certain hydroids or diatoms) that do not have a theca.

Athecate hydroids lack a protective theca around their polyps.

Synonyms

nakedunsheatheduncoveredsheatheless

Antonyms

Last updated: 2025/11/10 13:36