also lio-, comb. form of Gr. λεῖος smooth, appearing as the first element of certain scientific words, as: Leiodere Zool. [Gr. δέρος skin], one of the genus Leiodera of American iguanoid lizards (Cent. Dict.). Leioglossate a. [Gr. γλῶσσα tongue], having the characteristics of the group Leioglossa of octopod cephalopods, which have no radula. ǁ Leiomyoma Path. [see MYOMA], ‘the form of myoma which is composed of unstriated muscular fibre’ (Syd. Soc. Lex., 1888). Leiophyllous a. Bot. [Gr. φύλλον], having smooth leaves. Leiotrichous a. [Gr. τριχ-, θρίξ hair], smooth-haired, belonging to the group ǁ Leiotrichi, one of the two primary divisions into which mankind is considered by some to be divisible.

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1866.  Huxley, Preh. Rem. Caithn., 132. Bory de St. Vincent’s two primary divisions of the genus Homo, the Leiotrichi, or smooth-haired, and the Ulotrichi, or crisp-haired.

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1881.  West, in Jrnl. Bot., X. 115. This species belongs to the orthocarpous leiophyllous Hypnaceae.

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