1. A pilule, or very small pill.

2. A small rod-shaped or ovoid dosage form that is sterile and is composed essentially of pure steroid hormones in compressed form, intended for subcutaneous implantation in body tissues; serves as a depot providing for the slow release of the hormone over an extended period of time.

Origin: Fr. Pelote; L. Pila, a ball

(05 Mar 2000)