Meanings
- not comparablerarebiologyPertaining to the Arthrostraca, an obsolete grouping of crustaceans with segmented thoraxes and abdomens, bearing seven pairs of thoracic legs; included in this group are the isopods and amphipods.
[...] and have considered the possibility of their derivation from either the Arthrostracous Crustacea or the tracheate Arachnida.
1886, E Ray Lankester, XXXI.—Professor Claus and the classification of the Arthropoda, page n32 more examples
The Cumacea resemble the arthrostracous Crustacea in having eyes without a movable stalk; but they closely resemble the Schizopoda in the form of the body, thus corresponding with the lower developmental stages of the decapodous crustaceans.
1889, William Dwight Whitney, The century dictionary: An encyclopedic lexicon of the english language, page 1394In the important paper already mentioned, Hansen (J03) gives reason for believing that the labial segment in insects was primitively a trunk-segment, and has become secondarily associated with the head, like the segment that bears the maxillipeds in the arthrostracous Crustacea
1853, Quarterly journal of microscopical science., page 375
Origin
- Ancient Greekἄρθρον“joint”
- Englisharthrostracous
Likely from taxonomic name Arthrostraca + -ous; by surface analysis, arthr-, from Ancient Greek ἄρθρον (árthron, “joint”) + ὄστρακον (óstrakon, “shell”) + -ous
More words from Ancient Greek
Full word history & related roots →Cite this entry
arthrostracous. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/arthrostracous
“arthrostracous.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/arthrostracous. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “arthrostracous,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/arthrostracous.
Source: arthrostracous on Wiktionary, CC BY-SA 4.0.