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accessory cell

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noun
  1. Immunology. any of various cells of the immune system that work with T or B cells to initiate a specific immune response.
  2. Also called subsidiary cell. Botany. a plant epidermal cell associated with guard cells and different morphologically from other epidermal cells.
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Origin of accessory cell

First recorded in 1830–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
subsidiary cell in Science

subsidiary cell

[səb-sĭd′ē-ĕr′ē]
  1. A plant epidermal cell that is located next to a guard cell in the stoma of a leaf and differs in structure from other epidermal cells. Also called accessory cell
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accessory cell

  1. See subsidiary cell.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.