pseudobulb definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A thickened, bulblike, fleshy stem located above the ground, as in many orchids.
pseudobulb - Science Definition