definitions

accessory cell

noun

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

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Nearby words

accessorize, accessory, accessory adrenal, accessory apartment, accessory bud, accessory cell, accessory cephalic vein, accessory chromosome, accessory fruit, accessory gland, accessory hemiazygos vein

Origin of accessory cell

First recorded in 1830–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for subsidiary cell (1 of 2)

subsidiary cell

[ səb-sĭd′ē-ĕr′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

Science definitions for subsidiary cell (2 of 2)

accessory cell

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