vitamin B

noun

1

: vitamin b complex

2

or vitamin B₁

-ˈbē-ˈwən 

: thiamine

Examples of vitamin B in a Sentence

Recent Examples on the Web

Microbes from the sourdough starters considered to have desirable characteristics, such as the ability to break down proteins and fiber, or produce short-chain fatty acids and vitamin B, will be incorporated into such foods at a later stage. —Michael Allen, JSTOR Daily, 20 Mar. 2025

Instead, consider facial cleansers that contain gentle yet efficacious ingredients like: hyaluronic acid, vitamin B, vitamin C, ceramides, and lactic acid. —Bianca Salonga, Forbes, 18 Feb. 2025

Whole Grains and Complex Carbs Whole grains contain more iron, vitamin B, and fiber than refined grains. —Cristina Mutchler, Verywell Health, 13 Feb. 2025

Unwell Hydration, $15 Unwell Hydration combines electrolytes with vitamin B and caffeine for an easier morning wakeup. —Emily Burns, WWD, 31 Dec. 2024

Word History

First Known Use

circa 1920, in the meaning defined at sense 1

Rhymes for vitamin B

• abc
• absentee
• addressee
• adoptee
• agouti
• allottee
• amphorae
• amputee
• apc
• apogee
• appointee
• assessee

Kids Definition

vitamin B

noun

1

: vitamin b complex

2

: thiamine

Medical Definition

vitamin B

noun

1

: vitamin b complex

2

: any of numerous members of the vitamin B complex

especially : thiamine