subordinaladj.
/ˌsʌbˈɔːdᵻnl/, U.S. /ˌsəbˈɔrdən(ə)l/ Biology.
Of, relating to, or of the rank of, a suborder.
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the world > life > biology > taxonomy > taxon > [adjective] > order or sub-order
ordinal1822
subordinal1903
1842 A. Gray Bot. Text-bk. Index 404 Subordinal names.
1872 D. Oliver Lessons Elem. Bot. (new ed.) ii. 183 Upon these characters, derived from the face of the seed, subordinal divisions have been based.
1903 Fieldiana: Geol. 2 65 Pliosaurus has the anterior cervical ribs double-headed, a character supposed to be of at least family, possibly subordinal value.
1977 O. W. Richards & R. G. Davies Imms's Gen. Textbk. Entomol. (ed. 10) II. 469 Salmon..has divided the Arthropleonan families into three subordinal groups.
2009 Florida Entomologist 92 526/2 It would have been interesting if the authors had compared their ordinal, subordinal, and generic categories, based primarily on morphological traits.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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adj.1842