Part 661

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.