Meaning of ANTIBODY in English

/an"ti bod'ee/ , n. , pl. antibodies .

1. any of numerous Y-shaped protein molecules produced by B cells as a primary immune defense, each molecule and its clones having a unique binding site that can combine with the complementary site of a foreign antigen, as on a virus or bacterium, thereby disabling the antigen and signaling other immune defenses. Abbr.: Ab

2. antibodies of a particular type collectively. Also called immunoglobulin .

[ 1895-1900; ANTI- + BODY ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .