1. A substance applied to the skin, typically under the arms, to reduce or prevent sweating.
Usage: Usually used in plural or as a mass noun; often contrasted with deodorants, which mask odor rather than reduce sweat.

Examples

• She applied antiperspirants every morning before work to stay dry throughout the day.
• Many antiperspirants contain aluminum compounds that temporarily block sweat ducts.
• He switched to a stronger antiperspirant during the summer months.
• Some people prefer antiperspirants over deodorants because they actually reduce sweating.
• The dermatologist recommended antiperspirants for patients with excessive sweating.
• Antiperspirants are most effective when applied to clean, dry skin at night.
• These antiperspirants are designed to last up to 48 hours.