prothoracic gland hormone
Technical term in entomology and developmental biology; refers to ecdysone or related hormones produced by the prothoracic gland in insects.
Prothoracic gland hormone induces molting in insects.
Compound of 前胸腺 (prothoracic gland) + ホルモン (hormone). The exact derivation is straightforward; the term is a modern scientific coinage.