red-back spider

[ red-bak ]
/ ˈrɛdˌbæk /

noun

a venomous spider, Latrodectus hasselti, of Australia and New Zealand, related to the black widow spider and having a bright red stripe on the back.

Origin of red-back spider

First recorded in 1940–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019