copepod, copepod crustacean - minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish mussel shrimp, ostracod, seed shrimp - tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell
time and a half(noun) a rate of pay that is 1.5 times the regular rate; for overtime work.
The definition of a semester is half of a school year. An example of a semester is the fall term at a college. a six-month period; half year. either of the two terms, of about eighteen weeks each, which usually make up a school or college year.