n. [ Haema- + Gr. tachy`s swift + -meter. ] (Physiol.) A form of apparatus (somewhat different from the hemadrometer) for measuring the velocity of the blood. [ 1913 Webster ]

n. (Physiol.) The measurement of the velocity of the blood. [ 1913 Webster ]

n. Same as Hematemesis. [ 1913 Webster ]

a. [ Gr. a"imatiko`s] Of or pertaining to the blood; sanguine; brownish red. [1913 Webster]

Haematic acid (Physiol.), a hypothetical acid, supposed to be formed from hemoglobin during its oxidation in the lungs, and to have the power of freeing carbonic acid from the sodium carbonate of the serum. Thudichum. [1913 Webster]

n. Same as Hematin. [ 1913 Webster ]

n. Same as Hematinometer. [ 1913 Webster ]

a. Same as Hematinometric. [ 1913 Webster ]

n. Same as Hematite. [ 1913 Webster ]

a. (Zool.) Of a blood-red color; crimson; (Bot.) brownish red. [ 1913 Webster ]

prefix. See Haema-. [ 1913 Webster ]

n. [ Haemato- + -blast. ] (Anat.) One of the very minute, disk-shaped bodies found in blood with the ordinary red corpuscles and white corpuscles; a third kind of blood corpuscle, supposed by some to be an early stage in the development of the red corpuscles; -- called also blood plaque, and blood plate. [ 1913 Webster ]

‖n. pl. (Zool.) The cold-blooded vertebrates. Same as Hematocrya. [ 1913 Webster ]

a. Cold-blooded. [ 1913 Webster ]

n. Same as Hematocrystallin. [ 1913 Webster ]

n. Same as Hemadynamometer. [ 1913 Webster ]

n. [ Haemato- + genesis. ] (Physiol.) (a) The origin and development of blood. (b) The transformation of venous into arterial blood by respiration; hematosis. [ 1913 Webster ]

a. (Physiol.) Relating to haematogenesis. [ 1913 Webster ]

a. (Physiol.) Originating in the blood. [ 1913 Webster ]

n. Same as Hematoglobulin. [ 1913 Webster ]

a. Same as Hematoid. [ 1913 Webster ]

n. Same as Hematoidin. [ 1913 Webster ]

n. [ Haemato- + -in. ] (Physiol. Chem.) A substance formed from the hematin of blood, by removal of the iron through the action of concentrated sulphuric acid. Two like bodies, called respectively haematoporphyrin and haematolin, are formed in a similar manner. [ 1913 Webster ]

n. See Haematoin. [ 1913 Webster ]

n. The science which treats of the blood. Same as Hematology. [ 1913 Webster ]

‖n. [ NL.; haemato- + Gr. ly`sis a loosing, dissolving, fr. ly`ein to loose, dissolve. ] (Physiol.) Dissolution of the red blood corpuscles with diminished coagulability of the blood; haemolysis. -- Haem`a*to*lyt"ic a. [Webster 1913 Suppl.]

n. [ Haemato- + -meter. ] (Physiol.) (a) Same as Hemadynamometer. (b) An instrument for determining the number of blood corpuscles in a given quantity of blood. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. a"i^ma, a"i`matos, blood + filei^n to love. ] (Zool.) A division of Chiroptera, including the bloodsucking bats. See Vampire. [ 1913 Webster ]

n. [ Haemato- + Gr. pla`ssein to mold. ] (Anat.) Same as Haematoblast. [ 1913 Webster ]

a. [ Haemato- + -plastic. ] (Physiol.) Blood formative; -- applied to a substance in early fetal life, which breaks up gradually into blood vessels. [ 1913 Webster ]

n. [ Haemato- + Gr. porfy`ra purple. ] (Physiol. Chem.) See Haematoin. [ 1913 Webster ]

n. [ Haemato- + sac. ] (Anat.) A vascular sac connected, beneath the brain, in many fishes, with the infundibulum. [ 1913 Webster ]

n. A haemoscope. [ 1913 Webster ]

n. (Physiol. Chem.) Hematin. [ R. ] [ 1913 Webster ]

‖ n. Same as Hematosis. [ 1913 Webster ]

‖n. pl. (Zool.) Same as Hematotherma. [ 1913 Webster ]

a. Warm-blooded; homoiothermal. [ 1913 Webster ]

n. Same as Hemothorax. [ 1913 Webster ]

n. [ See Haematoxylon. ] (Chem.) The coloring principle of logwood. It is obtained as a yellow crystalline substance, C16H14O6, with a sweetish taste. Formerly called also hematin. [ 1913 Webster ]

‖n. [ NL., fr. Gr. a"i^ma blood + xy`lon wood.] (Bot.) A genus of leguminous plants containing but a single species, the Haematoxylon Campechianum or logwood tree, native in Yucatan. [1913 Webster]

‖n.; pl. Haematozoa [ NL., fr. Gr. a"i^ma, a"i`matos, blood + zw^, on animal. ] (Zool.) A parasite inhabiting the blood; esp.: (a) Certain species of nematodes of the genus Filaria, sometimes found in the blood of man, the horse, the dog, etc. (b) The trematode, Bilharzia haematobia, which infests the inhabitants of Egypt and other parts of Africa, often causing death. [ 1913 Webster ]

/mhw>. [ Gr. a"i^ma, a"i`matos, blood. ] Combining forms indicating relation or resemblance to blood, association with blood; as, haemapod, haematogenesis, haemoscope. [ 1913 Webster ]

☞ Words from Gr. a"i^ma are written hema-, hemato-, hemo-, as well as haema-, haemato-, haemo-. [1913 Webster]

n. [ Gr. "isto`s tissue + E. hæmatin.] (Physiol.) One of a class of respiratory pigments, widely distributed in the animal kingdom, capable of ready oxidation and reduction. [1913 Webster]

n. [ Myo- + haematin. ] (Physiol.) A red-colored respiratory pigment found associated with hemoglobin in the muscle tissue of a large number of animals, both vertebrate and invertebrate. [ 1913 Webster ]

n. [ 1st uro- + haematin. ] (Physiol. Chem.) Urinary haematin; -- applied to the normal coloring matter of the urine, on the supposition that it is formed either directly or indirectly (through bilirubin) from the haematin of the blood. See Urochrome, and Urobilin. [ 1913 Webster ]