MAL- 



175 



MAN- 



like excretory tubes leading into 

 the posterior part of the gut of 

 Insects. 



Malpighian tuft, see Malpighian 

 corpuscle. 



maltase (m61'tas) n. (A.S. mealt, 

 malt.] A plant ferment which con- 

 verts malt-sugar into grape-sugar 

 (dot.). 



maltose (mol'tos) n. [A.S. mealt, 

 malt.] Malt-sugar (phys.~). 



mamelon (mam'Slon) n. [L. mamilla, 

 nipple.] A small pimple-like struc- 

 ture in the centre of a tubercle of 

 an Echinoid interambulacral plate 

 (zoo!.). 



mamilla (mamil'a) n, [L. mamilla, 

 nipple.] A nipple (anat., zoo!.). 



mamlllary process or tubercle, the 

 superior tubercle connected with 

 the transverse processes of the lower 

 thoracic vertebrae (anat.). 



inanimate (mam'ilat) a. [L.mamilla, 

 nipple.] Studded with small pro- 

 tuberances. 



mamma (mam'a) n. [L. mamma, the 

 breast.] The milk-secreting organ 

 of Mammals, functionless in the 

 male (zoo!.). 



mammal (mam'al) n. [L. mamma, 

 the breast.] An animal of the class 

 of higher vertebrates of which the 

 females suckle the young (zoo!.). 



mammary (mam'ari) a. [L. mamma, 

 the breast.] Pert, the breast ; appl. 

 arteries, veins, glands, tubules 

 (anat.}. 



mammiferous (mamif'grus) a. [L. 

 mamma, the breast ; ferre, to bear.] 

 Developing mammae ; milk-secret- 

 ing ; mammalian (zoo!.). 



mandible (man'dibl) n. [L. mandibu- 

 lum, jaw.] The lower jaw of verte- 

 brates, either a single bone or 

 composed of a number ; or gener- 

 ally, either jaw ; a paired append- 

 age connected with the mouth in 

 Arthropods. 



mandibular (mandlb'ular) a. [L. 

 mandibulum, jaw.] Pert, the jaw ; 

 appl. arch, canal, foramen, fossa, 

 nerve, notch (anaf.). 



mandibulate (mandlb'ulat) a. [L. 

 mandibulum, jaw.] Having a lower 

 jaw ; having functional jaws ; hav- 

 ing mandibles (zoo!.). 



mandibuliform (mandib'ullform) a. 



[L. mandibulum, Jaw ; forma, shape.] 

 Resembling, or used as a mandible; 

 appl. certain insect maxillae (zoo!.). 



mandibulo-hyoid (mandib'ulo-hi'oid) 

 a. [L. mandibulum, jaw ; Gk. 

 hyoeides, Y-shaped.] In the region 

 of the mandible and hyoid (anaf.). 



mandibulo-maxillary (mandib'ulo- 

 mak'silari, -maksil'-) a. [L. mandib- 

 ulum, jaw ; maxilla, jaw.] Pert. 

 maxillae and mandibles of Arthro- 

 pods (zool.}. 



manducation (man'duka'shun) n. [L. 

 manducare, to chew.] Chewing ; 

 mastication (phys.). 



manicate (man'Ikat) a. [L. mani- 

 catus, sleeved.] Covered with en- 

 tangled hairs or matted scales (dot.). 



manna (man'a) n. [Gk. manna, 

 manna.] The hardened exudation 

 of the bark of certain trees (hot.} ; 

 honey-dew secreted by certain 

 Coccidae (zoo!.). 



mantle (man'tl) n. [L. mantellum, a 

 cloak.] The outer soft fold of 

 integument next the shell of Mol- 

 luscs ; a pallium ; a sheath of 

 spongoblast cells ; the body-wall 

 of Ascidians (zool.}. 



mantle cavity, a space between the 

 mantle and body proper (zoo/.). 



mantle cell, a cell of the tapetum 

 or investing tissue of a sporangium 

 (bot.\ 



mantle fibres, the spindle fibres of 

 a fully formed spindle (emb.). 



mantle layer, a layer of the embry- 

 onic medulla spinalis representing 

 the future gray columns (emb.). 



mantle lobes, dorsal and ventral 

 flaps of the mantle in bivalves 

 (zooL). 



manual (man'ual) n. [L. manus, 

 hand.] A wing-quill borne on the 

 manus or hand of Birds ; a primary 

 feather (zoo!.). 



manubrial (manu'brial) a. [L. manu- 

 brium, handle.] Pert, a manubrium ; 

 handle-shaped (zoo!.). 



manubrium (manu'brium) n. [L. 

 manubrium, handle.] A cell pro- 

 jecting inwards from the shield of 

 an antheridial globule of Thallo- 

 phytes (dot.) ; a hypostome or coni- 

 cal elevation at the distal end of a 

 Hydrozoan polyp ; the clapper-like 

 portion hanging down from the 



