used in certain cases as combining form of L. tubus TUBE (instead of the usual Latin form TUBI-: see -O) in several terms of zoology, anatomy, etc. a. Zool. in adjs. denoting a combination of tubular with some other form, as tubo-labellate, -nariform. b. Anat., etc. in terms relating to the Fallopian (rarely, the Eustachian) tube in connection with some other part; chiefly adjs., as tubo-abdominal (pertaining to or occurring in the Fallopian tube and the abdomen), -ligamentous, -ovarian, -peritoneal, -uterine, -vaginal; tubo-tympanal (pertaining to the Eustachian tube and the tympanum); rarely sbs., as tubo-ovariotomy (excision of the Fallopian tube and ovary).
1846. Dana, Zooph. (1848), 432. The nariform calicle is tubular at base—tubo-nariform. Ibid., 444. Corallum having the calicles tubo-labellate.
1857. Bullock, Cazeaux’ Midwif., 245. Tubo-ovarian Pregnancy. Ibid., 246. Tubo-abdominal Pregnancy.
1889. J. M. Duncan, Lect. Dis. Women, viii. (ed. 4), 243. An interstitial pregnancy may become tubo-uterine.
1900–13. Dorland, Med. Dict., Tuboligamentous, pertaining to an oviduct and a broad ligament. Tubo-ovarial, tubo-ovarian,… Tubo-ovariotomy,… Tuboperitoneal Tubotympanal,… Tubovaginal.
