(idiomatic, aviation, slang) To switch off the transponder (“a radar or radio transceiver that transmits some signal in response to receiving a predetermined signal”) of an aircraft, for example, b...

simple past tense and past participle of diagonalise

(gynaecology) An antiseptic solution used to sterilise and stain the vagina, cervix and surrounding skin during gynaecological procedures, and therefore reducing postoperative infection.

plural of gyrinid