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longitudinal

[lon-ji-tood-n-l, -tyood-] / ˌlɒn dʒɪˈtud n l, -ˈtyud- /
ADJECTIVE
over a protracted period of time; running lengthwise
Synonyms
Antonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

More longitudinal studies will be needed to build on the research, but could eventually lead to different tests and treatment options for men and women.

From MarketWatch • Apr. 13, 2026

A 2026 longitudinal study in the Journal of Public Health reached a similar conclusion.

From The Wall Street Journal • Mar. 27, 2026

Marc was accepted into AllFTD, a longitudinal study that is the largest ever conducted for this disease.

From Los Angeles Times • Sep. 7, 2025

And, given that botox only lasts three to six months, any longitudinal study would have to ensure participants are going for regular top-ups.

From BBC • Aug. 23, 2025

Both transverse and longitudinal waves cause a displacement of something: air molecules, for example, or the surface of the ocean.

From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones



Vocabulary lists containing longitudinal