Of or pertaining to the prothorax.

The position or office of a prothonotary.

plural of prothonotaryship

(biology) A peptide hormone found in insects, produced in the copora cardiaca or corpus allata, which initiates the release of the ecdysteroid hormone from the prothoracic gland.

(biology) That modifies the behaviour of the prothoracic gland

plural of prothoracicotropic hormone

(biology) Either of a pair of glands, in the prothorax of insects, which produce ecdysone

An antipsychotic drug.

A sedative and hypnotic drug.

A diuretic drug.