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test 1  (tst)
1. A procedure for critical evaluation; a means of determining the presence, quality, or truth of something; a trial: a test of ones eyesight; subjecting a hypothesis to a test; a test of an athletes endurance.
2. A series of questions, problems, or physical responses designed to determine knowledge, intelligence, or ability.
3. A basis for evaluation or judgment: A test of democratic government is how Congress and the president work together (Haynes Johnson).
4. Chemistry
a. A physical or chemical change by which a substance may be detected or its properties ascertained.
b. A reagent used to cause or promote such a change.
c. A positive result obtained.
5. A cupel.
v. test·ed, test·ing, tests
1. To subject to a test; try: tested the pen by scribbling on scrap paper; testing job applicants.
a. To determine the presence or properties of (a substance).
b. To assay (metal) in a cupel.
1. To undergo a test.
2. To administer a test: test for acid content; test for the presence of an antibody.
3. To achieve a score or rating on tests: tested high on the entrance exams.
4. To exhibit a given characteristic when subjected to a test: test positive for the tubercle bacillus.

[Middle English, cupel, from Old French, pot, from Latin test, testum.]

testa·bili·ty n.
testa·ble adj.

test 2  (tst)
A hard external covering, as that of certain amoebas, dinoflagellates, and sea urchins.

[Latin testa, shell.]

test  /tst/  n. 1 an examination or quiz to measure knowledge or ability: Our teacher gave us a spelling test. 2 an experiment, probe: The laboratory reported the results of my blood test.
v. [T] 1 to examine s.o.: The state tests people who want to get a drivers license. 2 to try out: After his operation, he tested his strength by walking a few steps. 3 infrml.fig. to test the waters: to experiment carefully: She tested the waters of graduate school by taking one course part-time before enrolling full-time. -n. [U] adj. testing.

Thesaurus: test n. 1 an exam infrml., mid-term, final 2 a check, analysis | trial, investigation.
v. 1 to quiz 2 to check, investigate | verify frml.

Usage Note: In school, a test is larger and more important than a quiz, but not as comprehensive as an examination. test

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