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2017 Word of the Year

accessory cell

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.
Origin of accessory cell
1830-1835
First recorded in 1830-35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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subsidiary cell in Science
subsidiary cell
  (səb-sĭd'ē-ěr'ē)   
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.
accessory cell  
See subsidiary cell.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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16
17
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