Definition of "blood cell" [blood cell]

• Any of the cells contained in blood; an erythrocyte or leukocyte; a blood corpuscle. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Strategically, antibodies are more generals than front-line troops: They enlist a specialized type of white blood cell for these nitty-gritty, surround-and-destroy missions."
• "As soon as the immune system realizes the body has been attacked by a foreign body, a type of white blood cell protein called an antibody jumps into action."
• "I was told that I also had leucopenia, a dangerously low white blood cell count."