White blood corpuscles
Corpuscle Cor"pus*cle (-p[u^]s*s'l), n. [L. corpusculum, dim. of corpus.] 1. A minute particle; an atom; a molecule. [1913 Webster]

2. (Anat.) A protoplasmic animal cell; esp., such as float free, like blood, lymph, and pus corpuscles; or such as are imbedded in an intercellular matrix, like connective tissue and cartilage corpuscles. See {Blood}. [1913 Webster]

Virchow showed that the corpuscles of bone are homologous with those of connective tissue. --Quain's Anat. [1913 Webster]

3. (Physics) An electron. [archaic] [Webster 1913 Suppl.]

{Red blood corpuscles} (Physiol.), in man, yellowish, biconcave, circular discs varying from 1/3500 to 1/3200 of an inch in diameter and about 1/12400 of an inch thick. They are composed of a colorless stroma filled in with semifluid h[ae]moglobin and other matters. In most mammals the red corpuscles are circular, but in the camels, birds, reptiles, and the lower vertebrates generally, they are oval, and sometimes more or less spherical in form. In Amphioxus, and most invertebrates, the blood corpuscles are all white or colorless.

{White blood corpuscles} (Physiol.), rounded, slightly flattened, nucleated cells, mainly protoplasmic in composition, and possessed of contractile power. In man, the average size is about 1/2500 of an inch, and they are present in blood in much smaller numbers than the red corpuscles. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Red blood corpuscles — Corpuscle Cor pus*cle ( p[u^]s*s l), n. [L. corpusculum, dim. of corpus.] 1. A minute particle; an atom; a molecule. [1913 Webster] 2. (Anat.) A protoplasmic animal cell; esp., such as float free, like blood, lymph, and pus corpuscles; or such as …   The Collaborative International Dictionary of English

  • Blood — The familiar red fluid in the body that contains white and red blood cells, platelets, proteins, and other elements. The blood is transported throughout the body by the circulatory system. Blood functions in two directions: arterial and venous.… …   Medical dictionary

  • Blood plasma — Plasma Plas ma, n. [See {Plasm}.] 1. (Min.) A variety of quartz, of a color between grass green and leek green, which is found associated with common chalcedony. It was much esteemed by the ancients for making engraved ornaments. [1913 Webster] 2 …   The Collaborative International Dictionary of English

  • blood count — noun 1. the number of red and white corpuscles in a blood sample • Hypernyms: ↑count 2. the act of estimating the number of red and white corpuscles in a blood sample • Hypernyms: ↑count, ↑counting, ↑numeration, ↑enumeration, ↑recko …   Useful english dictionary

  • Blood — For other uses, see Blood (disambiguation). Human blood smear: a – erythrocytes; b – neutrophil; c – eosinophil; d – lymphocyte …   Wikipedia

  • White pulp — Transverse section of a portion of the spleen. (Lymphatic nodule labeled at center right.) …   Wikipedia

  • blood plaque — Haematoblast H[ae]m a*to*blast ( bl[a^]st ), n. [H[ae]mato + 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… …   The Collaborative International Dictionary of English

  • blood plate — Haematoblast H[ae]m a*to*blast ( bl[a^]st ), n. [H[ae]mato + 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… …   The Collaborative International Dictionary of English

  • white damp — A noxious gas encountered in coal mines, commonly known as carbon monoxide, and having the effect of destroying the hemoglobin of the red corpuscles, or the oxygen carrying property of the blood, thus producing a weakening of the physical and… …   Ballentine's law dictionary

  • Red blood cell — Human red blood cells (6 8μm) Red blood cells (abbreviated RBCs; also referred to as erythrocytes or simply, as red cells[1]) are the most common type of blood cell and the vertebrate organism s principal means of delivering oxygen (O2) to the… …   Wikipedia

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