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 …

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

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

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 …

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 …

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

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

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 …

longitudinal meaning, definition, what is longitudinal: relating to the development of something...: Learn more.

of or pertaining to longitude or length: longitudinal measurement. extending in the direction of the length of a thing; running lengthwise: a thin, longitudinal stripe. Zoology pertaining to or …