صمام ṣimām pl. -āt plug, cork, stopper; valve, tube (radio) │ صمام الأمان (الأمن) s. al-amān (al-amn) safety valve; O صمام التقويم rectifier tube; رفع الصمام عن to let s.th. take its course, give free rein to s.th. (also to a feeling)
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