Science Word Wednesday: Macrocytes

Nov 04, 2020
By Mariah Jones


(noun. /MAK-row-sites/)

What does it mean? 

A macrocyte is an unusually large red blood cell. Macrocytes area typical sign for a type of anemia, called [pernicious anemia.] A person with this type of anemia will most likely also, have a lack of vitamin B12 and/or folic acid in their system. These two vitamins are important for healthy red blood cells.

Note: not to be confused with macrophage, a type of white blood cell.

Image: LabMedica International. Image Source

How do I use it in a sentence?

After Samantha’s annual checkup, her doctor found macrocytes in her blood sample taken at the appointment.


Macro; Greek makro, meaning ‘large’ 

Cyte; New Latin cyta, from Greek kytos meaning ‘hollow vessel

Fields of study in which this word is commonly used:



Edited by Anna Wheless and Emma Goldberg