Part 793

He*mat"i*non (?), n. [Gr. a"i^ma, a"i`matos, blood.] A red consisting of silica, borax, and soda, fused with oxide of copper and iron, and used in enamels, mosaics, etc.

Hem"a*tite (?), n. [L. haematites, Gr. &?; bloodlike, fr. a"i^ma, a"i`matos, blood.] (Min.) An important ore of iron, the sesquioxide, so called because of the red color of the powder. It occurs in splendent rhombohedral crystals, and in massive and earthy forms; -- the last called red ocher. Called also specular iron, oligist iron, rhombohedral iron ore, and bloodstone. See Brown hematite, under Brown.

Hem`a*tit"ic (?), a. Of or pertaining to hematite, or resembling it.

Hem"a*to (?). See HÊma-.

He*mat"o*cele (?), n. [Hemato- + Gr. &?; tumor: cf. F. hÈmatocËle.] (Med.) A tumor filled with blood.

||Hem`a*toc"ry*a (?), n. pl. [NL., fr. Gr. a"i^ma, a"i`matos, blood + ||kry`os cold.] (Zoˆl.) The cold-blooded vertebrates, that is, all but ||the mammals and birds; -- the antithesis to Hematotherma.

Hem`a*to*crys"tal*lin (?), n. [Hemato + crystalline.] (Physiol.) See Hemoglobin.

Hem"a*toid (?), a. [Hemato- + -oid.] (Physiol.) Resembling blood.

Hem`a*toid"in (?), n. (Physiol. Chem.) A crystalline or amorphous pigment, free from iron, formed from hematin in old blood stains, and in old hemorrhages in the body. It resembles bilirubin. When present in the corpora lutea it is called hÊmolutein.

Hem`a*tol"o*gy (?), n. [Hemato- + -logy.] The science which treats of the blood.

||Hem`a*to"ma (?), n. [NL. See Hema- , and -oma.] (Med.) A ||circumscribed swelling produced by an effusion of blood beneath the ||skin.

||Hem`a*to*phil"i*a (-t*fl"*), n. [NL., fr. Gr. a"i^ma, a"i`matos, ||blood + filei^n to love.] (Med.) A condition characterized by a ||tendency to profuse and uncontrollable hemorrhage from the slightest ||wounds.

Hem`a*to"sin (?), n. (Physiol. Chem.) The hematin of blood. [R.]

||Hem`a*to"sis (?), n. [NL., fr. Gr. a"ima`twsis.] (Physiol.) (a) ||Sanguification; the conversion of chyle into blood. (b) The ||arterialization of the blood in the lungs; the formation of blood in ||general; hÊmatogenesis.

||Hem`a*to*ther"ma (?), n. pl. [NL., from Gr. a"i^ma, a"i`matos, blood ||+ thermo`s warm.] (Zoˆl.) The warm-blooded vertebrates, comprising ||the mammals and birds; -- the antithesis to hematocrya.

Hem"a*to*ther"mal (?), a. Warm- blooded.

Hem`a*tox"y*lin (?), n. HÊmatoxylin.

||Hem`a*tu"ri*a (?), n. [NL. See Hema-, and Urine.] (Med.) Passage of ||urine mingled with blood.

Hem`au*tog"ra*phy (?), n. (Physiol.) The obtaining of a curve similar to a pulse curve or sphygmogram by allowing the blood from a divided artery to strike against a piece of paper.

{ ||Hem*el"y*tron (? or ?), ||Hem*el"y*trum (- trm cf. Elytron, 277), }, n.; pl. Hemelytra (&?;). [NL. See Hemi, and Elytron.] (Zoˆl.) One of the partially thickened anterior wings of certain insects, as of many Hemiptera, the earwigs, etc.

||Hem`e*ra*lo"pi*a (?), n. [NL., fr. Gr. &?;, the opposite of &?;; &?; ||day + &?; of &?;. See Nyctalopia.] (Med.) A disease of the eyes, in ||consequence of which a person can see clearly or without pain only by ||daylight or a strong artificial light; day sight.

Some writers (as Quain) use the word in the opposite sense, i. e., day blindness. See Nyctalopia.

Hem`er*o"bi*an (?), n. [Gr. &?; day + &?; life.] (Zoˆl.) A neuropterous insect of the genus Hemerobius, and allied genera.

He*mer"o*bid (?), a. (Zoˆl.) Of relating to the hemerobians.

||Hem`e*ro*cal"lis (?), n. [NL., fr. Gr. &?;; &?; day + &?; beauty.] ||(Bot.) A genus of plants, some species of which are cultivated for ||their beautiful flowers; day lily.

Hem"i- (?). [Gr. "hmi-. See Semi-.] A prefix signifying half.

Hem`i*al*bu"min (?), n. [Hemi- + albumin.] (Physiol. Chem.) Same as Hemialbumose.

Hem`i*al"bu"mose` (?), n. [Hemi- + albumose.] (Physiol. Chem.) An albuminous substance formed in gastric digestion, and by the action of boiling dilute acids on albumin. It is readily convertible into hemipeptone. Called also hemialbumin.