- interferogram
- interferometer
- interferon
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- interfinger
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- interhemispheric
- interim
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- interior
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- interleukin
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- interleukin 2
- interleukin 3
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- intermetallic compound
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- internal rhyme
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- internal-combustion
- internal-combustion engine
- internalization
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- internat.
- international
- international Morse code
- international atomic time
- international candle
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- international nautical mile
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- international sea and swell scale
- international telegram
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- international unit
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- internet
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- internet of things
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