ostialadj.
/ˈɒstɪəl/, U.S. /ˈɑstiəl/ Anatomy and Zoology.
Of, relating to, or having an ostium or ostia; of the nature of an ostium.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [adjective] > of internal organ > of or relating to or having ostium
ostial1885
ostiate1897
1885 Proc. Royal Soc. 1884–5 38 111 This spot may be denominated the ‘ostial part’ of the sinus.
1900 L. C. Miall & A. R. Hammond Struct. & Life Hist. Harlequin Fly 76 All the valves found in the heart of any Chironomus, whether cellular, ostial, or aortic, appear to be derived from the semicircular muscle-cells.
1910 Practitioner Jan. 51 The ostial end of the tube dilates to allow of the passage of the mole.
1941 Science 8 Aug. 142/2 Much the same problem exists regarding the origin of the Mullerian duct, in particular the ostial ingrowth.
1969 R. F. Chapman Insects xxxii. 662 (caption) Incurrent ostial valves in the larva of Chaoborus at different phases of the heartbeat.
1969 Jrnl. Thoracic & Cardiovascular Surg. 57 792/2 At autopsy all showed varying degrees of coronary ostial sclerosis with stenosis.
1992 Philos. Trans. (Royal Soc.) B. 335 289/2 Totton..observed them to connect with an ostial ring canal.
2003 Internat. Jrnl. Gynecol. & Obstetr. 83 (Suppl. 2) 101 Four types of ostial appearances could be recognized hysteroscopically.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).
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adj.1885