LONGITUDINAL definition: of or relating to longitude or length. See examples of longitudinal used 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 longitudinal data).

The meaning of LONGITUDINAL is placed or running lengthwise. How to use longitudinal 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 Learner's …

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 direction from …

4 days ago · Adjective longitudinal (not comparable) Running across a set direction of an object. Synonym: lengthwise Coordinate term: transverse The motion about the longitudinal axis of an …

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