Wordnet 3.0
VERB (1)
1. 
 test something under the conditions under which it will actually be used; 
- Example: "The Army field tested the new tanks"
The Collaborative International Dictionary of English v.0.48:
field-test \field-test\, field test \field test\v. t.
   to test something in the field, i. e. under the actual
   conditions under which it will be used; as, The Army
   field-tested the new tanks. Used in contrast with testing in
   a laboratory or under controlled conditions.
   Syn: field test.
        [WordNet 1.5 +PJC]
WordNet (r) 3.0 (2006):
field-test
    v 1: test something under the conditions under which it will
         actually be used; "The Army field tested the new tanks"