Definition of "vaginate" []

• Forming or enclosed in a sheath. (adjective)
• Resembling a sheath. (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.

• "And the challenges arrived: Stories with titles like “She Killed Me Twice”, “The Brain That Exploded”, “The Pachyderm Wore Pink” and “Single White Fee Male” with words like ranunculus, vaginate and carronade. 300 stories later, here for the first time in print are 180 of the best."
• "Polygoneae is certainly to be acknowledged, but they are similar to those of Costus, and hence not stipulae, but an extension of the margin of the vaginate petiole, from which veins are prolonged into it; the functions of these are not stomatose, since they are membranous, the veins being the only green parts."