noun Date: 1976 either of two polypeptides structurally similar to insulin that are secreted either during fetal development or during childhood and that mediate growth hormone activity
INSULIN-LIKE GROWTH FACTOR
Meaning of INSULIN-LIKE GROWTH FACTOR in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012