a class

n any of a class of composite plastics used to make car bodies and cases for computers and other appliances n a bachelor's degree in arts and sciences n the eleventh month of the civil year

any of a class of highly reactive chemical compounds

used with either mass or count nouns to indicate the whole number or amount of or every one of a class s

used with either mass or count nouns to indicate the whole number or amount of or every one of a class s completely given to or absorbed by

n a class of transferases that catalyze transamination (that transfer an amino group from an amino acid to another compound)