A flexible sleeve made of latex or other impermeable material such as sheepskin, worn over an erect penis during sexual intercourse as a contraceptive or as a way to prevent the spread of STDs.
Sex hormones, as used in hormone replacement therapy for transgender or intersex people.
A synthetic compound with the same activity.
Any substance produced by one tissue and conveyed by the bloodstream to another to effect physiological activity.
Any similar substance in plants.
To treat with hormones.