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The normal coloring matter of the red blood corpuscles of vertebrate animals. It is composed of hematin and globulin, and is also called hæmatoglobulin. In arterial blood, it is always combined with oxygen, and is then called oxyhemoglobin. It crystallizes under different forms from different animals, and when crystall…

The expectoration of blood, due usually to hemorrhage from the mucous membrane of the lungs.

Any discharge of blood from the blood vessels.

Livid and painful swellings formed by the dilation of the blood vessels around the margin of, or within, the anus, from which blood or mucus is occasionally discharged; piles; emerods. [The sing. hemorrhoid is rarely used.]

Of or relating to stagnation of the blood.

An effusion of blood into the cavity of the pleura.

mph and exultation; hence, joy, high spirits, frolicsomeness; wildness. The heyday in the blood is tame. Shak. In the heyday of their victories. J. H. Newman.

Bred in high life; of pure blood. Byron.

The part of a gland, or similar organ, where the blood vessels and nerves enter; the hilus; as, the hilum of the kidney.

The decay and dissolution of the organic tissues and of the blood.

rature in spite of the great variations in the surrounding air; in distinct from the cold-blooded (poikilothermal) animals, whose body temperature follows the variations in temperature of the surrounding medium.

Warm-blooded; homoiothermal; hæmatothermal.

flies which capture bees and other insects, often larger than themselves, and suck their blood. Called also hawk fly, robber fly. -- To stir up a hornet's nest, to provoke the attack of a swarm of spiteful enemies or spirited critics. [Colloq.]

erous insect (Hippobosca equina), which troubles horses by biting them, and sucking their blood; -- called also horsefly, horse louse, and forest fly. -- Horse vetch (Bot.), a plant of the genus Hippocrepis (H. comosa), cultivated for the beauty of its flowers; -- called also horsehoe vetch, from the peculiar shape of…

A large blood-sucking leech (Hæmopsis vorax), of Europe and Northern Africa. It attacks the lips and mouths of horses.

Any dipterous fly of the family Tabanidæ, that stings horses, and sucks their blood.

usually having large, drooping ears, esp. one which hunts game by scent, as the foxhound, bloodhound, deerhound, but also used for various breeds of fleet hunting dogs, as the greyhound, boarhound, etc. Hounds and greyhounds, mongrels, spaniels, curs. Shak.

etic term for the sea or the atmosphere. "The clear hyaline, the glassy sea." Milton. Our blood runs amazed 'neath the calm hyaline. Mrs. Browning.

An abnormally watery state of the blood; anæmia.

A superabundance or congestion of blood in an organ or part of the body. Active hyperæmia, cognestion d%ue to increased flow of blood to a part. -- Passive hyperæmia, interchange due to obstruction in the return of blood from a part. -- Hy`per*æ"mic, a.