Answer: htest

AnswerCrossword Clue
HTESTNewsworthy 1950s trial, informally
HTESTExplosive experiment
HTEST1950's trial
HTEST'54 event on Bikini atoll
HTEST1954 event code-named Castle Bravo
HTESTExplosive event of '54
HTESTMushroom cloud maker, for short
HTESTPoisonous mushroom producer, briefly?
HTEST'50s trial
HTESTCloud producer, informally
HTESTExplosive 1950s trial
HTESTThermonuclear experiment of the '50s
HTESTExplosion on a range, for short
HTESTEnewetak event
HTEST1952 Eniwetok event
HTEST1950s trial, briefly
HTEST1950s Bikini trial, briefly
HTESTEye muscle exam
HTEST1950s experiment
HTESTMushroom cloud maker
HTESTEarthshaking '50s event
HTESTBikini Atoll event, briefly
HTESTExplosive '50s trial
HTEST'50s big blast
HTEST'50s bomb tryout
HTESTBikini blast
HTESTDramatic '50s trial
HTEST1954 event coded as "Castle Bravo"
HTESTBikini blast, briefly
HTEST'50s experiment, briefly
HTESTBikini atoll event, briefly
HTEST'50s blast, briefly
HTESTBikini event, briefly
HTESTOperation Redwing event, 1956
HTESTNuclear experiment
HTESTBig blast of the '50s
HTESTBig boom maker in 1952, for short
HTESTNuclear trial
HTEST'54 Bikini event