HbA1c

noun

ˌāch-ˌbē-ˌā-ˌwən-ˈsē 

: hemoglobin a1c

Studies show that people who have trouble controlling their HbA1c level using a single medication do better if they add a second drug.

—Washington Post

Examples of HbA1c in a Sentence

Recent Examples on the Web

Diagnosis still relies heavily on measuring glucose levels in the blood, most commonly using the HbA1c test, which estimates average blood sugar over the previous few months. — Anna McKie, Wired News, 7 May 2026

Studies have shown that 100% fruit juice generally has a neutral effect on fasting glucose, insulin, HbA1c, and insulin resistance, rather than improving them. — Verywell Health, 6 May 2026

In addition to improving post-meal blood sugar, overnight oats may help with hemoglobin A1c (HbA1c). — Brittany Lubeck, Verywell Health, 31 Mar. 2026

Your HbA1c Levels Could Decrease Hemoglobin A1c (HbA1c) measures your average blood sugar levels over three months. — Caitlin Beale, Health, 13 Mar. 2026

Word History

First Known Use

1977, in the meaning defined above

Medical Definition

HbA1c

noun

ˌāch-ˌbē-ˌā-ˌwən-ˈsē 

: hemoglobin a1c