LONGITUDINAL definition: of or relating to longitude or length. See examples of longitudinal used in a sentence.

The meaning of LONGITUDINAL is placed or running lengthwise. How to use longitudinal in a sentence.

A longitudinal study (or longitudinal survey, or panel study) is a research design that involves repeated observations of the same variables (e.g., people) over long periods of time (i.e., uses …

medical, social sciences Longitudinal research is done on people or groups over a long period of time: longitudinal analysis / studies (Definition of longitudinal from the Cambridge Advanced …

longitudinal, adj. & n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

Definition of longitudinal adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

1. of or pertaining to longitude or length: longitudinal measurement. 2. extending in the direction of the length of a thing; lengthwise. 3. of or extending along the long axis of the body, or the …

A longitudinal line or structure goes from one end of an object to the other rather than across it from side to side. That stability lends itself to longitudinal analysis. Collins COBUILD Advanced …

Dec 30, 2025 · Adjective longitudinal (not comparable) Running across a set direction of an object.

Use the adjective longitudinal to describe something that takes place over a long period of time, like a study of the lifetime eating habits of people who live on islands. Sociologists and other …