accessory cell

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.
Botany. a plant epidermal cell associated with guard cells and different morphologically from other epidermal cells.
Also called subsidiary cell.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Accessory cell is always a great word to know.
So is ort. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a scrap or morsel of food left at a meal.
American Heritage
Science Dictionary
accessory cell  
See subsidiary cell.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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