Definition of "introrse" []

• Botany Facing inward; turned toward the axis. Used especially of anthers. (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.

• "Alexander Braun notices the transformation of pistils into stamens in Chives (_Allium Scorodoprasum_), and in which three stamens appeared in the place of as many pistils, and had extrorse anthers, while the six normal anthers are introrse."
• "The anthers are at first introrse, but just before the bud opens they assume this position [sketch] and then turn right over and become extrorse."
• ""Stamens six, hypogenous! anthers introrse! capsule cartilaginous, loculicidally three-valved, scurfy-leaved epiphytic!""