Akademik

Heterostraci

noun

extinct group of armored jawless fishes or fish-like vertebrate; taxonomy is not clear

• Syn: ↑suborder Heterostraci

• Hypernyms: ↑animal order

• Member Holonyms: ↑Ostracodermi, ↑order Ostracodermi

• Member Meronyms: ↑heterostracan

* * *

\\ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷strəˌsī\ noun plural

Usage: capitalized

Etymology: New Latin, from heter- + Greek ostrakon shell, potsherd — more at ostracon

: a class or other division of ostracoderms with widely separated nares and eyes and with an exoskeleton which may consist of a few large plates or numerous placoid scales

Useful english dictionary. 2012.