ALA 



9 



ALL- 



(anat.) ; the lateral petal of a 

 papilionaceous flower ; the mem- 

 branous expansion on some seeds 

 or fruits (bot.). 



alar (a'lar) a. [L. ala, wing.] Wing- 

 like ; pert, alae ; axillary (bot.) ; 

 appl. ligaments, cartilages, etc. 

 (anat.). 



alary (a'l&rT) a. [L. ala, wing.] 

 Wing-like. 



alate (a'lat) a. [L. ala, wing.] Broad- 

 lipped, appl. shells ; appl. a spicular 

 system in Calcarea which is sagit- 

 tal because of inequality of angles 

 (zool.). 



albescent (albeVgnt) a, [L. albescere, 

 to grow white.] Growing whitish. 



albicant (al'bikant) a. [L. albicare, 

 to grow white.] Becoming white. 



albinism (al'bimzm) n. [L. albus, 

 white.] The absence of pigmenta- 

 tion (zoo!.) ; state of having colour- 

 less chromatophores. 



albino (albino, albe'no) n. [Sp. 

 albino, white, from L. albusl\ A 

 person with congenital deficiency 

 of pigment in the skin, hair, and 

 eyes (anat.) ; any animal with a 

 similar deficiency on its body 

 (zool.) ; a plant with colourless 

 chromatophores, due to absent 

 chloroplasts or undeveloped chro- 

 moplasts (bot.). 



albumen (albu'men) n. [L. albumen, 

 white of egR.] The white of egg 

 (zool.) ; nutritive material stored in 

 the embryo (bot.). 



albumin (albu'mln) n. [L. albumen, 

 white of egg.] A protein occurring 

 in blood serum, milk, and many 

 animal and vegetable tissues (phys.). 



albuminous (albu'minus) a. [L. albu- 

 men, white of egg.] Pert, having, 

 or of the nature of, albumen or 

 albumin. 



alburnum (albur'num) n. [L. albus, 

 white.] Sapwood or splintwood, 

 the soft white substance between 

 inner bark (cambium) and true 

 wood (duramen) ; the outer young 

 wood of a dicotyledonous stem 

 (bot.). 



alecithal (aleVithal) a. [Gk. a, with 

 out ; lekithos, yolk.] Appl. ova 

 with little or no yolk (zool.). 



aleurone (alu'ron) n. [Gk. aleuron, 

 flour.] Appl. proteid grains found 



in general protoplasm and used as 

 reserve food-materials (bot.). 



alexin (aleVsin) n. [Gk. alexein, to 

 ward off.] A substance in the 

 blood which destroys bacteria 

 (Phys.). 



algin (al'jin) n. [L. alga, seaweed.] 

 A substance of a gelatin character 

 obtained from certain Algae (phys.). 



algoid (al'goid) a. [L. alga, plant ; 

 Gk. eidos, shape.] Pert, resembling 

 or of the nature of an Alga (bot.). 



algology (algol'oji) n. [L. alga, sea- 

 weed ; Gk. logos, discourse.] The 

 study of seaweeds or Algae (bot.). 



alima (al'ima) . [Gk. halimos, pert. 

 sea.] A larval stage of certain 

 Crustacea, e.g. Squilla (zool.). 



alimentary (al'Ime'n'tari) a. [L. alere, 

 to nourish.] Pert, the nutritive 

 functions ; appl. canal, tract, 

 system, etc. 



alisphenoid (al'isfe'noid) . [L. a/a, 

 wing ; Gk. sphen, wedge ; eidos, 

 form.] The wing-like portion of 

 the sphenoid forming part of the 

 cranium. 



alitrunk (al'itrungk) n. [L. ala, wing ; 

 truncus, trunk.] The thorax of an 

 insect when fused with the first 

 segment of the abdomen. 



allantois (Slan'tois) n. [Gk. alias, 

 sausage.] An embryonic organ, a 

 membranous bag arising from the 

 posterior part of the alimentary 

 canal in the higher vertebrates, 

 and acting as an organ of respira- 

 tion or nutrition or both, and 

 usually uniting with the chorion 

 (emb.). 



allassotonic (alas'otfin'ik) a. [Gk. 

 allassein, to change ; tonos, strain.] 

 Induced by stimulus, appl. move- 

 ments of grown plants. 



allelomorph (ale'lomorf) n. [Gk. alle- 

 lon, one another ; morphe, form.] 

 In Mendelian inheritance one of 

 any pair of alternative characters 

 (biol.). 



alliaceous (alta'shus) a. [L. allium, 

 garlic.] Pert, the allium or garlic 

 family ; having a smeN or taste 

 like garlic (bot?). 



allogamy (alfig'aml) n. [Gk. allos, 

 other ; gamos, marriage.] Cross- 

 fertilization, as opp. autogamy 

 (biol.). 



