internal
adjective
in·ter·nal
in-ˈtər-nᵊl 
ˈin-ˌtər-
1
: existing or situated within the limits or surface of something: such as
a(1)
: situated near the inside of the body
(2)
: situated on the side toward the median plane of the body
b
: of, relating to, or occurring on the inside of an organized structure (such as a club, company, or state)
internal affairs
2
: relating or belonging to or existing within the mind
4
: present or arising within an organism or one of its parts
internal stimulus
5
: applied or intended for application through the stomach by being swallowed
an internal remedy
Examples of internal in a Sentence
the internal structure of the planet
a patient who is experiencing internal bleeding
Recent Examples on the Web
The child was found by her mother three hours later, with internal vehicle temperatures having reached over 108 degrees.
—
Jose R. Gonzalez, AZCentral.com, 23 Oct. 2025
Enclose with your contribution the donor’s address with city, state and ZIP code for internal processing, a notation of whether the donation should remain anonymous, and/or whether the donation is in the memory of someone special.
—La Risa R. Lynch, jsonline.com, 23 Oct. 2025
Paint will degrade over time in unregulated temperatures, especially as weather fluctuates for the seasons, and electronics will collect condensation in their circuit boards, internal pieces, and electrical equipment—all of which will cause warping and corrosion over time.
—Michelle Mastro, Architectural Digest, 23 Oct. 2025
Payroll-processing giant ADP quietly stopped sharing its internal data with the central bank in late August, leaving Fed economists without a real-time measure that had covered about one-fifth of the nation’s private workforce.
—Eva Roytburg, Fortune, 23 Oct. 2025
See All Example Sentences for internal
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Jose R. Gonzalez, AZCentral.com, 23 Oct. 2025
Enclose with your contribution the donor’s address with city, state and ZIP code for internal processing, a notation of whether the donation should remain anonymous, and/or whether the donation is in the memory of someone special.
—La Risa R. Lynch, jsonline.com, 23 Oct. 2025
Paint will degrade over time in unregulated temperatures, especially as weather fluctuates for the seasons, and electronics will collect condensation in their circuit boards, internal pieces, and electrical equipment—all of which will cause warping and corrosion over time.
—Michelle Mastro, Architectural Digest, 23 Oct. 2025
Payroll-processing giant ADP quietly stopped sharing its internal data with the central bank in late August, leaving Fed economists without a real-time measure that had covered about one-fifth of the nation’s private workforce.
—Eva Roytburg, Fortune, 23 Oct. 2025
See All Example Sentences for internal
Cite this Entry
“Internal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/internal. Accessed 24 Oct. 2025.
Copy CitationKids Definition
internal
adjective
in·ter·nal
in-ˈtərn-ᵊl
1
: existing or lying within : inner
internal structure
2
: relating to, occurring, or located in the body
3
: of, relating to, or occurring on the inside of an organized structure (as a company or state)
internal affairs
Medical Definition
internal
adjective
in·ter·nal
in-ˈtərn-ᵊl
1
: existing or situated within the limits or surface of something: as
a
: situated near the inside of the body
an internal layer of abdominal muscle
b
: situated on the side toward the midsagittal plane of the body
the internal surface of the lung
2
: present or arising within an organism or one of its parts
an internal stimulus
3
: applied or intended for application through the stomach by being swallowed
an internal remedy
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