W

1-10    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    XYZ

Watershed hydrology

Watershed hydrology refers to the distribution and circulation of water on land, in soil and rock, and in the atmosphere.

White blood cell

White blood cells are the body's primary defense against invading organisms and other foreign material. These cells use two main methods of defense: phagocytosis (consumption of the invader) and the immune response (see antibodies).

Witt-Cameron standard

A Witt-Cameron standard consists of three chambers containing dipotassium hydrogen phosphate to simulate bone attenuation. It is used to standardize bone scans from different scanning devices.

Wright's stain

Wright's stain is a dry stain mixture of eosinates of polychromed methylene blue used in staining of blood smears.