(n)detonator, detonating device, capa mechanical or electrical explosive device or a small amount of explosive; can be used to initiate the reaction of a disrupting explosive
(n)ceiling, roof, capan upper limit on what is allowed“he put a ceiling on the number of women who worked for him”, “there was a roof on salaries”, “they established a cap for prices”
(n)crown, crownwork, jacket, jacket crown, cap(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth“tomorrow my dentist will fit me for a crown”