a procedure intended to establish the quality, performance, or reliability of something, especially before it is taken into widespread use

both countries carried out nuclear tests in May

four fax modems are on test

the first Test against New Zealand

a movable hearth in a reverberating furnace, used for separating gold or silver from lead

take measures to check the quality, performance, or reliability of (something), especially before putting it into widespread use or practice

this range has not been tested on animals

several trial runs were carried out to test the special brakes

the shell or integument of some invertebrates and protozoans, especially the chalky shell of a foraminiferan or the tough outer layer of a tunicate