STING RAY; STINGRAY n.
Any one of numerous rays of the family Dasyatidæ, syn. Trygonidæ, having one or more large sharp barbed dorsal spines, on the whiplike tail, capable of inflicting severe wounds. Some species reach a large size, and some, esp., on the American Pacific coast, are very destructive to oysters.
TAPEWORM n.
d many allied genera. The body is long, flat, and composed of numerous segments or proglottids varying in shape, those toward the end of the body being much larger and longer than the anterior ones, and containing the fully developed sexual organs. The head is small, destitute of a mouth, but furnished with two or more…
THISTLE n.
ts. Blessed thistle, Carduus benedictus, so named because it was formerly considered an antidote to the bite of venomous creatures. -- Bull thistle, Cnicus lanceolatus, the common large thistle of neglected pastures. -- Canada thistle, Cnicus arvensis, a native of Europe, but introduced into the United States from Ca…