Definition of "oviparous" []

• Producing eggs that hatch outside the body. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The first platypus specimen, only a skin, reached England in 1799 and it wasn’t until 1884 when it was definitely established that platypuses were oviparous, that is, they laid eggs like reptiles and birds, but unlike the majority of mammals."
• "But a creature that is not oviparous is not, by definition, a bird, even if one were found that had feathers, had toothless beaks, and flew."
• "No, I'd say they'd have to be oviparous, and then the eggs would hatch fledglings, unable to fly for quite some time."