extrathymic

As a noun terms

is .

As an adjective extrathymic is

that originates outside of the thymus gland.

As a noun gland

is (zoology) an organ that synthesizes a substance, such as hormones or breast milk, and releases it, often into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland) or gland can be (mechanical) a compressable cylindrical case and its contents around a shaft where it passes through a barrier, intended to prevent the passage of a fluid past the barrier examples:.

As an adjective extrathymic is

that originates outside of the thymus gland.

As a noun thymus

is a ductless gland, consisting mainly of lymphatic tissue, located behind the top of the breastbone. It is most active during puberty, after which it shrinks in size. It plays an important role in the development of the immune system and produces lymphocytes.

As an adjective extrathymic is

that originates outside of the thymus gland.