red-back spider: Meaning and Definition of

red'-back spi'der

Pronunciation: (red'bak"), [key]
  1. 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.