noun Etymology: Greek kolla + International Scientific Vocabulary -gen Date: circa 1865 any of a group of fibrous proteins that occur in vertebrates as the chief constituent of connective tissue fibrils and in bones and yield gelatin and glue upon boiling with water, ~ous adjective
COLLAGEN
Meaning of COLLAGEN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012