adjective suffix Etymology: Latin -aceus 1. a. characterized by ; full of
Example: setaceous b. consisting of
Example: diatomaceous ; having the nature or form of
Example: tuffaceous 2. a. of or relating to a group of animals typified by (such) a form
Example: cetaceous or characterized by (such) a feature
Example: crustaceous b. of or relating to a plant family
Example: solanaceous

Энциклопедический словарь Мерриама-Вебстера