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[Glossary](/glossary)/ T-Cell 

Basics 

# T-Cell

## Definition

A type of white blood cell crucial for adaptive immunity, maturing in the thymus gland.

## Why It Matters

Thymic peptides like Thymosin Alpha-1 enhance T-cell function, which is central to immune defense.

## Related Terms

[Immune Response](/glossary/immune-response)[Thymus](/glossary/thymus)

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