Leu*cit"ic (l*st"k), a. (Min.) Containing leucite; as, leucitic rocks.
Leu"ci*toid (l"s*toid), n. [Leucite + -oid.] (Crystallog.) The
trapezohedron or tetragonal trisoctahedron; -- so called as being the
form of the mineral leucite.
{ Leu"co- (l"k-), Leuc- (lk- ). } [Gr. leyko`s white.] A combining form
signifying white, colorless; specif. (Chem.), denoting an extensive
series of colorless organic compounds, obtained by reduction from
certain other colored compounds; as, leucaniline, leucaurin, etc.
Leu"co*cyte (l"k*st), n. [Leuco- + Gr. ky`tos a hollow vessel.]
(Physiol.) A colorless corpuscle, as one of the white blood corpuscles,
or those found in lymph, marrow of bone, connective tissue, etc.
They all consist of more or less spherical masses of protoplasm,
without any surrounding membrane or wall, and are capable of motion.
{ ||Leu`co*cy*thæ"mi*a ||Leu`co*cy*the"mi*a } (l`k*s*th"m*), n. [NL.,
fr. Gr. leyko`s white + ky`tos a hollow vessel + a"i^ma blood.] (Med.)
A disease in which the white corpuscles of the blood are largely
increased in number, and there is enlargement of the spleen, or the
lymphatic glands; leuchæmia.
Leu`co*cy`to*gen"e*sis (- s`t*jn"*ss), n. [Leucocyte + genesis.]
(Physiol.) The formation of leucocytes.
Leu`co*e`thi*op"ic (- `th*p"k), a. [Leuco- + Ethiopic.] White and
black; -- said of a white animal of a black species, or the albino of
the negro race.
Leu`co*e"thi*ops (-"th*ps), n. [Leuco- + Aethiops.] An albino. [Also
written leucœthiops.]
Leu"co*line (l"k*ln or -ln), n. [Leuc- + L. oleum oil.] (Chem.) A
nitrogenous organic base from coal tar, and identical with quinoline.
Cf. Quinoline.
||Leu*co"ma (l*k"m), n. [NL., fr. Gr. ley`kwma, fr. leyko`s white.]
||(Med.) A white opacity in the cornea of the eye; -- called also
||albugo.
||
Leu*co"ma*ine (l*k"m*n or - n), n. [Leuco- + -maine, as in ptomaine.]
(Physiol. Chem.) An animal base or alkaloid, appearing in the tissue
during life; hence, a vital alkaloid, as distinguished from a ptomaine
or cadaveric poison.
Leu*con"ic (-kn"k), a. [Leuc- + croconic.] (Chem.) Pertaining to, or
designating, a complex organic acid, obtained as a yellowish white gum
by the oxidation of croconic acid.
Leu*cop"a*thy (l*kp"*th), n. [Leuco- + Gr. pa`schein, paqei^n to
suffer.] The state of an albino, or of a white child of black parents.
Leu"co*phane (l"k*fn), n. [Gr. leykofanh`s appearing bright or white;
leyko`s white + fai`nein to show: cf. G. leukophan.] (Min.) A mineral
of a greenish yellow color; it is a silicate of glucina, lime, and soda
with fluorine. Called also leucophanite.
Leu`co*phleg"ma*cy (l`k*flg"m*s), n. [Gr. leykoflegmati`a; leyko`s
white + fle`gma phlegm: cf. F. leucophlegmasie.] (Med.) A dropsical
habit of body, or the commencement of anasarca; paleness, with viscid
juices and cold sweats.
Leu`co*phleg*mat"ic (-flg*mt"k), a. [Cf. F. leucophlegmatique, Gr.
leykofle`gmatos.] Having a dropsical habit of body, with a white
bloated skin.
Leu"co*phyll (l"k*fl), n. [Leuco- + Gr. fy`llon a leaf.] (Chem.) A
colorless substance isomeric with chlorophyll, contained in parts of
plants capable of becoming green. Watts.
Leu*coph"yl*lous (l*kf"l*ls or l`k*fl"ls), a. [Gr. leyko`fyllos;
leyko`s white + fy`llon a leaf.] (Bot.) Having white or silvery
foliage.
{ Leu"co*plast (l"k*plst), Leu`co*plas"tid (-pls"td), } n. [Leuco- +
Gr. pla`ssein to mold.] (Bot.) One of certain very minute whitish or
colorless granules occurring in the protoplasm of plants and supposed
to be the nuclei around which starch granules will form.
Leu*cop"y*rite (l*kp"*rt), n. [Leuco- + pyrites.] (Min.) A mineral of a
color between white and steel-gray, with a metallic luster, and
consisting chiefly of arsenic and iron.
Leu`cor*rhœ"a (l`kr*r"), n. [Leuco- + Gr. "rei^n to flow.] (Med.) A
discharge of a white, yellowish, or greenish, viscid mucus, resulting
from inflammation or irritation of the membrane lining the genital
organs of the female; the whites. Dunglison.
||Leu"co*ryx (l"k*rks), n. [NL., from Gr. leyko`s + 'o`ryx a kind of
||gazelle.] (Zoöl.) A large antelope of North Africa (Oryx leucoryx),
||allied to the gemsbok.
||
Leu"co*scope (l"k*skp), n. [Leuco- + -scope.] (Physics) An instrument,
devised by Professor Helmholtz, for testing the color perception of the
eye, or for comparing different lights, as to their constituent colors
or their relative whiteness.
Leu"co*soid (-soid), a. [NL. Leucosia, the typical genus (fr. Gr.
leyko`s white) + -oid.] (Zoöl.) Like or pertaining to the Leucosoidea,
a tribe of marine crabs including the box crab or Calappa.
Leu"co*sphere (-sfr), n. [Leuco- + sphere.] (Astron.) The inner corona.
[R.]
Leu`co*tu"ric (l`k*t"rk), a. [Leuco- + allantoic + uric.] (Chem.)
Pertaining to, or designating, a nitrogenous organic substance of the
uric acid group, called leucoturic acid or oxalantin. See Oxalantin.
Leu"cous (l"ks), a. [Gr. leyko`s.] White; -- applied to albinos, from
the whiteness of their skin and hair.
Leu*cox"ene (l*kks"n), n. [Leuco- + Gr. xe`nos stranger.] (Min.) A
nearly opaque white mineral, in part identical with titanite, observed
in some igneous rocks as the result of the alteration of titanic iron.
Leu*kæ"mi*a (l*k"m*), n. Leucocythæmia.
Leuke (lk), a., Leuke"ness, n. See Luke, etc.
Leu"ko*plast (l"k*plst), n. (Bot.) See Leucoplast.
||Le*va"na (l*v"n), n. [L., fr. levare to raise.] (Rom. Myth.) A
||goddess who protected newborn infants.
||
Le"vant (l"vant), a. [F., p. pr. of lever to raise.] (Law) Rising or
having risen from rest; -- said of cattle. See Couchant and levant,
under Couchant.
Le*vant" (l*vnt"), n. [It. levante the point where the sun rises, the
east, the Levant, fr. levare to raise, levarsi to rise: cf. F. levant.
See Lever.] 1. The countries washed by the eastern part of the
Mediterranean and its contiguous waters.