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Arthrostraca

plural noun
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Ar·​thros·​tra·​ca | \ ärˈthrästrəkə \

Definition of Arthrostraca

in some classifications
: a division of Crustacea comprising the orders Amphipoda, Isopoda, and usually Tanaidacea in which both thorax and abdomen are segmented and there are seven pairs of thoracic appendages

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History and Etymology for Arthrostraca

New Latin, from arthr- + -ostraca

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Cite this Entry

“Arthrostraca.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Arthrostraca. Accessed 15 Jan. 2021.

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