t cell tce • tch · · · Info · Definitions · Characters · · t cell · · Text Common · · Latin · · Scripts 6 · · Length 2 · · Syllables Definitions · · · (noun) a small lymphocyte developed in the thymus; it orchestrates the immune system's response to infected or malignant cells. Synonyms: T cell, T lymphocyte. · · Noun Definition 1 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C t latin small letter t U+0074