the GNU version of the Collaborative International Dictionary of English
n. Rat poison; white arsenic.
The Century Dictionary and Cyclopedia
n. Rat-poison. Arsenious acid is often so called.
n. A plant, Chailletia toxicaria. See rat-poison, 2.
To poison with ratsbane.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
Word Usage
"Early in June Judith, walking in the wood, brought home the splendid red wood lily, and a cluster too of "ratsbane," with its flowers like a little crown of white wax."