LUN- 



171 



MAC- 



lung-book, the respiratory organ of 

 Scorpionids, formed like a purse 

 with numerous compartments 

 (zool.}. 



lunular (lu'nular, loo-) a. [L. lunula, 

 small moon.] Marked with cres- 

 cent-shaped marking (zool.}. 



lunulate (lu'nulat, loo-). Lunular. 



lunule (lu'nul, loo-) n. [L. lunula, 

 small moon.] A crescent-shaped 

 marking (zool.}. 



lunulet (lu'nulSt, loo-) n. [L. lunula, 

 small moon.] A small lunule 

 (zool.}. 



lupulin (lu'pultn, loo'pulln) n. [L. 

 lupus, a hop.] The resinous gland- 

 ular scales of hops (hot.} ; an 

 organic compound, bitter and acrid, 

 obtained from these (phys.}. 



lutein (lu'tein, loo-) n. [L. luteus, 

 orange-yellow.] The yellow pig- 

 ment of egg-yolk (phys.}. 



lychnidiate (liknld'iat) a. [Gk. lych- 

 nis, phosphorescent gem.] Lumin- 

 ous (zool.}. 



lymph (limf) n. [L. lympha, water.] 

 An alkaline colourless fluid con- 

 tained in the lymphatic vessels 

 (anaf., phys.}. 



lymph heart, a contractile expan- 

 sion of a lymph vessel where it 

 opens into a vein, found in many 

 of the vertebrates (zool.}. 



lymphatic (Hmfat'ik) a. [L. lympha, 

 water.] Pert, or conveying lymph 

 (anat.}. 



lymphocyte (lim'foslt) n. [L. fympha, 

 water ; Gk. kytos, hollow.] A 

 colourless corpuscle found in blood 

 and lymph (phys.}. 



lymphogenlc (llm'fojen'ik) a. [L. 

 lympha, water ; Gk. gignesthai, to 

 produce.] Produced in the lymph- 

 glands (phys.}. 



lymphogenous (limfoj'e'nus) a. [L. 

 lympha, water ; Gk. gignesthai, to 

 produce.] Lymph-forming (phys., 

 anat.}. 



lymphold (lim'foid) a. [L. lympha, 

 water ; Gk. eidos, resemblance.] 

 Appl. retiform tissue with meshes 

 largely occupied by lymph cor- 

 puscles ; adenoid (phys.}. 



lyophll (li'ofil) a. [Gk. lyein, to loose ; 

 philos, loving.] Appl. solutions 

 which, after evaporation to dry- 

 ness, go readily into solution again 



on the addition of a fluid ; cf. 

 lyophobe (phys.}. 



lyophobe (Ifofob) a. [Gk. lyein, to 

 loose ; phobos, fear.] Appl. solu- 

 tions which, after evaporation to 

 dryness, remain as a solid ; cf. 

 lyophll (phys.}. 



lyotropic (llotrop'ik) a. [Gk. lyein, to 

 loose ; trope, a turning.] Appl. 

 solutions which are dependent on 

 changes in the solvent itself 

 (phys.}. 



lyra (li'ra) n. [Gk. lyra, lyre.] Tri- 

 angular part of the corpus callosum, 

 marked with lines as a lyre (anat.}. 

 lyrate (ffrat) a. [Gk. lyra, lyre.] 

 Lyre-shaped ; appl. certain leaves 

 (bot.}. 



lysactinic (Hsaktln'Ik) a. [Gk. lysis, 

 a loosing ; aktis, ray.] Of Stel- 

 leroidea, having the podia limited 

 to the lower half of the body instead 

 of continued to the apical plates ; 

 cf. desmactlnic (zool.}. 

 lyslgenous (lisij'gnus) a. [Gk. lysis, 

 loosing ; gignesthai, to produce.] 

 Appl. formation of tissue cavities 

 caused by the degeneration and 

 breaking down of cell-walls in the 

 centre of the mass (bot.}. 

 lysln (li'sin) n. [Gk. lysis, loosing.] 

 Any substance capable of destroy- 

 ing bacteria (phys.}. 

 lysogenesls (Irsojen'ests) n. [Gk. 

 lysis, loosing ; gignesthai, to pro- 

 duce.] The action of lysins (phys.}. 

 lysogenous (llsoj'e'nus). Lysigenous. 

 lyssa (lis'a) n. [Gk. lyssa, madness.] 

 A vermiform structure of cartilage, 

 muscle, and connective tissue, 

 under the tongue of Mammals 

 (anat.}. 



lytta (llt'a) n. [Gk. lytta, madness.] 

 A cartilaginous or fibrous rod lying 

 in the tongue of Carnivores (zool.}. 



M 



macerate (m&s'erat) v. [L. macerare, 

 to soften.] To wear away or to 

 isolate the parts of a tissue or 

 organ (zool.} ; to soften and wear 

 away by digestion or other means 

 (phys.}. 



machopolyp (mak'6p611p) n. [Gk, 



