hemat01ogy

[Pref. hemato-, and Gr. logos a discourse.] Med .: That part of medicine which treats of the blood, with special reference to its varying characters in disease. the-mat-õpe, s. [HEM A TOP US.] Ornith.: The Oyster-catcher, Hæmatopus ostral egus. hem-at-o-stā'-phis, s. [HEM A TO STAPH IS.] hěm-at-o-zō'-ą, s. pl . [HEMATOZOA.] hem-at-b-zō-on, s. [HEMATOZOON.] hěmě lỹ tròn ( pl . hěm-ě-ly-tra), s . [Pref. hem i-, and Mod. Lat. elytron (pl. elytra ) (q. v.).] Entom . (generally plural): The wing-cases of the Hemipter a, the basal portion of which is chitinous or horny, while the apices are membranous. hẽm-er-a-lô-pi-a, s . [Greek hēmera =a day; alaos blind, and ops is seeing, eyesight. Mahn and Littré do not consider alaos to be an element in the word.] Pathol .: A word about which much confusion has arisen. If the Greek alaos (blind) be really an element in the word, then the meaning is blind as to vision during the day. If it be not, the signification is just the opposite-viz., seeing (only) during the day, any blindne which exists being at night. The word hemeralopia has been used in both senses, the confusion having begun with Hippo crates or some early editor of his. If day-blindne is called hemeralopia, then night-blindne is nyctalopia, and vice vers a . Both are forms of partial amaurosis, arising probably from imperfect nutrition of the retina, often noticed as an early symptom of scurvy. sin, as; expect, Xenophon, exist. ph = f. Hemerobaptists Hěm-er-ô-bắp'-tists, s . pl . [Gr. hēme rob apt is tes , from hemera =a day, and baptistes =one that dips or bathes.] [BAPTIST.] Jewish sects: A Jewish sect, who regarded it as a religious duty to bathe daily. he-měr ō-bi-an, a. & s. [Mod. Latin hemerobi(us); Eng., ., suff. -an. ] A. As adj .: Of or belonging to the genus He me rob i us, or the family Hemerobiidae (q. v.). B. As subst.: An insect of the genus He me rob i us, or the family Hemerobiidae (q. v.). hěm-er-ô-bi-l-dæ, s. pl. [Mod. Latin hemero bi ( us ); Lat. fem. pl. adj. suff.- idœ.] Entom.: Aphis-lions, lace-winged flies; a family of neuropterous insects. The antenne are threadlike; the palpi only four; the eyes have metallic brilliancy; the ocelli are generally wanting; the wings elegantly reticulated, the legs short, the tarsi pentamerous. The larvæ feed eagerly on aphides. The pupa is enveloped in a cocoon. The perfect insect flies chiefly in the evening. It lays eggs in little bunches on leaves, each egg being elevated on a foot-stalk. hěm-er-ō-bi-ŭs, s . [Pref. hemero- , and Gr. bios =life, course of life.] Entom.: The typical genus of the family Hemerobiidæ (q. v.).