Langimage
English

ascidioid

|as-ci-di-oid|

C2

/æsˈsɪdiɔɪd/

resembling a sea squirt; saclike

Etymology
Etymology Information

'ascidioid' originates from New Latin/scientific coinage, specifically from the combining form 'ascidio-' (from Latin 'ascidia' or New Latin 'Ascidiacea') and the Greek-derived suffix '-oid' meaning 'resembling'. The element 'ascidia' ultimately comes from Greek 'askidion' meaning 'little bag'.

Historical Evolution

'ascidioid' developed from New Latin forms such as 'ascidioides' (formed from 'ascidia' + Greek '-oides') used in 19th-century zoological descriptions, and later entered English scientific usage as 'ascidioid'.

Meaning Changes

Initially the root referred to a 'little bag' (Greek 'askidion'), and over time the term came to mean 'resembling ascidians' or 'having a saclike/tunicate form' in biological contexts; this is the modern usage.

Meanings by Part of Speech

Noun 1

a (usually fossil or microscopic) organism or structure that resembles an ascidian; an organism described as ascidioid.

Researchers identified the specimen as an ascidioid based on its saclike morphology.

Synonyms

ascidian-like organismtunicate-like organism

Adjective 1

resembling or having the characteristics of ascidians (sea squirts) — saclike or tunicate-like in form or structure.

The fossil displayed ascidioid features that suggested a tunicate-like body plan.

Synonyms

ascidian-liketunicate-likesaclike

Last updated: 2025/10/26 15:10