LAM 



LAP- 



Lamarckian (lamark'ian) a. [F. 

 Lamarck, biologist.] Of or pert. 

 the theories put forward by Lamarck 

 (diol.). 



Lamarckism (lamark'izm) n. [F. 

 Lamarck, biologist.] The evolution 

 theory of Lamarck, embodying the 

 principle that acquired character- 

 istics are transmissible (diol.). 



lambda (lam'da) n. [Gk. A, lambda.] 

 The junction of the lambdoid and 

 sagittal sutures (anat.). 



lambdoid (lam'doid) a. [Gk. A, 

 lambda ; eidos, resemblance.] A- 

 shaped ; appl. a cranial suture 

 (anat.). 



lambdoidal, lambdoid. 



lamella (lamel'a) n. [L. lamella, a 

 small plate.] Any thin plate-like 

 structure (anat., zool.) ; the gill of 

 an Agaric (dot.). 



lamellar (lameTar) a. [L. lamella, a 

 small plate.] Composed of, or 

 possessing thin plates (zool., dot.). 



lamellate (lamel'at). Lamellar. 



lamellibranchiate (lameTibrang'kiat) 

 a. [L. lamella, thin plate ; Gk. 

 brangchia, gills.] Having plate- 

 like gills on each side ; with bi- 

 laterally compressed symmetrical 

 body, like a bivalve (zool.). 



lamellicorn (lameTikorn) a. [L. 

 lamella, plate ; cornu, horn.] Hav- 

 ing antennal joints expanded into 

 flattened plates (zojf.). 



lamelliferous (lam'elif'e'rus) a. [L. 

 lamella, plate ; ferre, to cawy.j 

 Having small plates or scales 

 (zool.). 



lamelliform (lamel'iform) a. [L. la- 

 mella, plate ; forma, shape.] Plate- 

 like (zool.). 



lamellirostral (lamgl'iros'tral) a. [L. 

 lamella, plate ; rostrum, beak.] 

 Having the inner edges of the 

 bill bearing lamellar-like ridges 

 (zool.). 



lamelloss (lameTos, lam'los), lamellar. 



lamina (lam'ina) n. [L. lamina, plate.] 

 A thin layer, or scale ; one of the 

 thin plate-like expansions of sensi- 

 tive tissue which fit into the grooves 

 on the inside of the horse-hoof 

 (zool.) ; the blade of the leaf (dot.). 



laminar (lam'mar) a. [L. lamina, 

 plate.] Consisting of plates or thin 

 layers (dot., zool.). 



laminiform (lamin'iform) a. [L. lam- 

 ina, plate ; forma, shape.] Laminar. 



laminiplantar (lam'inTplan'tar) a. [L. 

 lamina, plate ; planta, sole of foot.] 

 Having the scales of the metatarsus 

 meeting behind in a smooth ridge 

 (zool.). 



laminous (lam'inus) a. [L. lamina, 

 plate.] ^Laminar. 



lanate (lan'at) a. [L. lana, wool.] 

 Woolly (zool.) ; covered with short 

 hair-like processes giving a woolly 

 appearance to the surface (dot.). 



lance-linear (lans'-lin'ear) a. [L. 

 lancea, lance ; linea, line.] Between 

 lanceolate and linear in form ; appl. 

 leaves (dot.). 



lance-oblong (lans'-ob'long) a. [L. 

 lancea, lance ; odlongus, oblong.] 

 Oblong with tapering ends ; appl. 

 leaves (dot.). 



lanceolate (lan'seolat) a. [L. lanceola, 

 little lance.] Broad at base and 

 tapering to the point ; lance-shaped 

 (dot., zool.). 



lance-oval (lans'-o'val) a. [L. lancea, 

 lance ; ovalis, oval.] Something 

 between lanceolate and oval (dot.). 



lance-ovate (lans'-o'vat) a. [L. lancea, 

 lance ; ovalis, oval.] Something 

 between laftceolate and ovate (dot.). 



lancefejaafoisi, speciad'plates support- 

 I &iHf&^ e water-vascular vessels of 

 \,^TJlastoMs (jppJit). 



Langerhans, see islets of Langer- 

 y. V nAnsT 



Vlanguet, languette (lang'gwe't) n. 

 [F. langue, tongue.] A process on 

 the branchial sac of Ascidians 

 (zool.). 



laniary (lan'iari) a. [L. laniare, to 

 tear in pieces.] Term appl. to 

 canine tooth (zool.). 



lantern, see Aristotle's lantern 

 . (zool.). 



lanthanin (lan'thanin) n. [Gk. lan- 

 thanein, to conceal.] Oxychro- 

 matin. 



lanuginous (lanu'jinus) a. [L. lanugo, 

 wool.] Woolly (dot., zool.). 



lanugo (lanu'go) n. [L. lanugo, wool.] 

 The downy covering on a foetus, 

 shed early in life (anat.). 



lapidicolous (lap'Idik'olus) a. [L. 

 lapis, stone ; colere, to cultivate.] 

 Appl. animals that live under 

 stones (zool.). 



