test vs field trial

test and field trial both are nouns.

Word	Noun	Adjective	Verb	Adverb
test	Yes	No	Yes	No
field trial	Yes	No	No	No

As nouns, field trial is a hyponym of test; that is, field trial is a word with a more specific, narrower meaning than test:

test: the act of testing something
field trial: a test of young hunting dogs to determine their skill in pointing and retrieving

As nouns, field trial is a hyponym of test; that is, field trial is a word with a more specific, narrower meaning than test:

test: trying something to find out about it
field trial: a test of the performance of some new product under the conditions in which it will be used

Other hyponyms of test include field test, alpha test, beta test, road test, trial balloon.

test (noun)	field trial (noun)
the act of testing something	a test of young hunting dogs to determine their skill in pointing and retrieving
any standardized procedure for measuring sensitivity or memory or intelligence or aptitude or personality etc	a test of the performance of some new product under the conditions in which it will be used
the act of undergoing testing	a contest between gun dogs to determine their proficiency in pointing and retrieving
a hard outer covering as of some amoebas and sea urchins
trying something to find out about it
a set of questions or exercises evaluating skill or knowledge

test (verb)	field trial (verb)
undergo a test
examine someone's knowledge of something
determine the presence or properties of (a substance)
achieve a certain score or rating on a test
put to the test, as for its quality, or give experimental use to
test or examine for the presence of disease or infection
show a certain characteristic when tested