1. Formal systematic questioning
   "The lawyer's interrogation was designed to reveal inconsistencies in the witness's story";
   - examination, interrogatory
    
2. An instance of questioning
   "The detective's interrogation lasted for hours";
   - question, inquiry, enquiry [Brit, Cdn], query
    
3. A sentence of inquiry that asks for a reply
   "he had trouble phrasing his interrogations";
   - question, interrogative, interrogative sentence, query
    
4. A transmission that will trigger an answering transmission from a transponder
   "The air traffic control system sent out an interrogation signal to identify nearby aircraft"

Derived forms: interrogations

Type of: questioning, sentence, transmission

Antonym: answer

Encyclopedia: Interrogation, The