...we do a 100 percent x-ray of the nozzle ablator parts to be sure that there aren't any delams or voids or cracks. 1986, Presidential Commission on the Space Shuttle Challenger Accident, page 96:
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delams
Number=Plur
lexicographic
delam en · VERB
Pronunciation
/diːˈlæm/
Meanings
(abbreviation, alt-of) Abbreviation of delaminate.