LAY- 
“petra of Langhans,—see cytotropho- 
lender ‘(lé'dér) nm. [A.S. laedan, to 
lead.]_ Highest shoot or part of 
rome of a tree (do4. 
leaf (léf) ». [A.S. leaf, leaf.] An 
expanded a wth of a_ stem, 
whens green (02 t). 
lecithalb tilt “(lésttehalbe ‘min) 7. 
[Gk. lekithos, egg-yolk ; L. albumen, 
white of egg.] ubstance, con- 
sisting of albeit and lecithin, said 
o exist in various organs in the 
body (pAys.). 
lecithin (les' sce ig nm. [Gk. lekithos, 
egg-yolk. aie fat of 
a asm (phys.). 
lecith (lés'ithéblast) # [Gk. 
eee egg-yolk ; Waxios, pee 
In developing cess, tee yolk-co 
tainin 
lecithocoel (lés'ithdsal) m. “[Gk leki- 
st egg-yolk ; ozlos, hollow. ] The 
segmentation cavity of holoblastic 
eggs (emd.). 
legume (léguim, lég’iim) ». [L. leg- 
umen, A dehiscent one- 
celled, Le valved carpel, ee pod of 
bot. 
° 
rh 
i=] 
77) 
fp 
om 
se 
ed “qeaatetbee proboscis 
(zool.) ; a fillet of fibres oe _— side 
of the cerebral pedunc 
focusses rays 
€ (200 
seainet “ae ‘ise n. “tL. dens, lentil.] 
ng pore in Angiosperm 
stems (d07.). 
lent: eos age _(léntik’alar) a. [L. len 
m. of dens, \entil.] Sha ed 
jabs convex lens (dot, 
165 
LEP- 
lenticular veggie ” The tip of 
the incus articulat with the 
stapes, which is often ossified as 
rate unit (am 
lenticulate déntiatat). a, [L. dens, 
lentil. ] ing in a sharp point ; 
depressed, aise and frequently 
ribbed (z00 
lentiform en vtiform) a. [L. dens, 
lenti pe. ] ee 
orm 
lentigerous (léntij’éris) i Bde 
lentil ; gererss to bear. ] Garni 
with a lens (zoo/.). 
lentiginose (enti ‘inds) a. [L. lentigo, 
fro fens, lentil. Freckled ; 
spec ckled ad numerous small 
dots (zoo/. 
lentiginous mca tent ints). Lentiginose. 
lepidodendroid (eden roid) a. 
Gk. /efis, scale ; 
etdos, \ike.] wits 
having scale-like leaf-scars (fa/.). 
Moly 
lepidophyte (lépidéfit) 7. [Gk. 
ca 
es (zool.). 
sacdaobe (lép’ Se a. [Gk. Zepis, ee 
minute scales (do¢, 
lepidotic (ep rae ahs a. wal 
cale. /. 
Teleostomi, bony a 
probably modified scales (. ). 
lepospondy. (lép’6spon’diliis) a. 
[Gk. é& i husk; 5, tylus, 
lepbiospbalesA (lép’ tékefaloid, = ? 
a. [Gk. depfos, slender : Re epha 
head; etdos, resemb 
ing 
a Leptocephalus (zoo/. 
e (lép’tésér’kal) a. [Gk. 
leptos, slender; kerkos, tail.] With 
long slender tapering tail, as some 
Fishes (zo 
le ctylous (lép’ serie A = 
[Gk. Jeptos, slender 
finger.] Having s small or gree 
digits (zoo/.). 
