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See more synonyms for pseudobulb on Thesaurus.com
noun Botany.
  1. an enlarged, aboveground portion of stem, present in many tropical orchids, in which moisture is stored.
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Origin of pseudobulb

First recorded in 1825–35; pseudo- + bulb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

pseudobulb in Science


  1. A thickened, bulblike, fleshy stem located above the ground, as in many orchids. See also bulb corm.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.