ommatidialadj.
/ˌɒməˈtɪdɪəl/, U.S. /ˌɑməˈtɪdiəl/ Zoology.
Of or relating to an ommatidium.
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the world > animals > invertebrates > bodies or parts > [adjective] > relating to facet of eye
ommatidial1887
1887 Amer. Naturalist 21 1121 The history of the retinal—or, to use the term with his significance, ommatidial—elements.
1925 A. D. Imms Gen. Textbk. Entomol. i. 76 The hypodermis between the ommatidial pillars becomes transformed into the secondary pigment cells.
1954 Proc. National Acad. Sci. U.S.A. 40 260 The light stimulus had a large incidence angle to the ommatidial axis.
1993 E. N. K. Clarkson Invertebr. Palaeontol. & Evol. (ed. 3) xi. 351/2 These tubules are the site of the photoreceptive pigments whose chemical alteration by light triggers an electrical discharge in the ommatidial nerves.
This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).
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adj.1887