Main Entry: lym·pho·cyte

Pronunciation: \ˈlim(p)-fə-ˌsīt\

Function: noun

Etymology: International Scientific Vocabulary

Date: 1890

: any of the colorless weakly motile cells originating from stem cells and differentiating in lymphoid tissue (as of the thymus or bone marrow) that are the typical cellular elements of lymph, include the cellular mediators of immunity, and constitute 20 to 30 percent of the white blood cells of normal human blood — compare b cell, t cell

— lym·pho·cyt·ic \ˌlim(p)-fə-ˈsi-tik\ adjective