1. administering ether as an anesthetic to a patient
Usage: chiefly British spelling (American: etherizing); historical/medical; present participle of etherise
2. treating or saturating something with ether (the chemical compound)
Usage: chiefly British spelling (American: etherizing); chemistry/laboratory context

Examples

• The surgeon began etherising the patient before the operation.
• In the 19th century, etherising became a common practice in hospitals.
• The anesthetist was etherising the child gently to minimize distress.
• Before modern anesthetics, etherising was the standard method for pain relief during surgery.
• The laboratory technician was etherising the samples to prepare them for analysis.