2. (Astron.) A constellation in the northern hemisphere, near
Lyra.
{Hercules' beetle} (Zo["o]l.), any species of {Dynastes}, an
American genus of very large lamellicorn beetles, esp. {D.
hercules} of South America, which grows to a length of six
inches.
{Hercules' club}. (Bot.)
(a) An ornamental tree of the West Indies ({Zanthoxylum
Clava-Herculis}), of the same genus with the prickly
ash.
(b) A variety of the common gourd ({Lagenaria vulgaris}).
Its fruit sometimes exceeds five feet in length.
(c) The Angelica tree. See under {Angelica}.
{Hercules powder}, an explosive containing nitroglycerin; --
used for blasting.