hemoglobin A1c

noun

Definition of hemoglobin A1c

: a stable glycoprotein formed when glucose binds to hemoglobin A in the blood

Blood sugar was assessed by measuring the amount of hemoglobin A1c in the participants' blood, a test that looks for hemoglobin with sugar attached to it.
—Gina Kolata

also : a test that measures the level of hemoglobin A1c in the blood as a means of determining the average blood sugar concentrations for the preceding two to three months

Note: Both the glycoprotein and the test are also called A1c, glycated hemoglobin, glycohemoglobin, glycosylated hemoglobin, HA1c, and HbA1c.

First Known Use of hemoglobin a1c

1964

Medical Dictionary

hemoglobin A1c

noun \ -ˌā-ˌwən-ˈsē \

medical Definition of hemoglobin A1c

: a stable glycoprotein formed when glucose binds to hemoglobin A in the blood

Blood sugar was assessed by measuring the amount of hemoglobin A1c in the participants' blood, a test that looks for hemoglobin with sugar attached to it.
—Gina Kolata, The New York Times, 22 Dec. 2005

also : a test that measures the level of hemoglobin A1c in the blood as a means of determining the average blood sugar concentrations for the preceding two to three months — called also A1c, glycated hemoglobin, glycohemoglobin, glycosylated hemoglobin, HA1c, HbA1c