What does intracutaneous mean?
Intracutaneous is an adjective describing something located within the skin or delivered into the skin. It is especially common in medical and pharmacological contexts, where the exact route of administration can matter. An intracutaneous injection places a substance into the skin itself, often producing a small, raised wheal, and differs from a subcutaneous injection, which introduces a substance into the tissue below the skin. The term may also refer to procedures performed within the skin, such as certain allergy tests. Although its technical form can sound unnecessarily obscure, “intracutaneous” communicates the intended location of a substance more precisely than general terms such as “injected.” In clinical writing, “intradermal” is often the more familiar equivalent, while “transdermal” describes passage through the skin rather than placement within it.
adjectiveSituated within the skin, or introduced into the skin rather than being applied to its surface.
- Located within the skin or introduced into the skin.
"The nurse administered the vaccine by an intracutaneous injection."
"The test material was introduced through a shallow intracutaneous injection."
"Researchers compared the appearance of the reaction after intradermal and intracutaneous administration."
Intracutaneous may sound medical, but it simply means “within the skin”—a precise term for a remarkably thin target.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does intracutaneous come from?
Intracutaneous was formed in English from the Latin-derived combining form intra-, meaning “within,” and cutaneous, meaning “of or relating to the skin.” Cutaneous comes from Latin cutis, “skin,” and is the source of related terms such as intradermal and transcutaneous. The modern adjective developed to specify a method of administration into the skin itself.
Related word forms
How intracutaneous is actually used
This is a specialized medical or scientific term. In pharmacology, it commonly distinguishes injection into the skin itself from subcutaneous injection, which enters tissue beneath the skin. The adjective is often replaced by the more familiar medical synonym “intradermal” in clinical usage.
Easily confused with intracutaneous
An intradermal or intracutaneous substance is deposited within the skin, whereas a subcutaneous substance is injected into the tissue beneath the skin.
Intracutaneous administration places a substance within the skin, while transdermal administration delivers it through the skin into the bloodstream.