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.

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

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 …

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 …

Factsheet What does the word longitudinal mean? There are 11 meanings listed in OED's entry for the word longitudinal. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Definition of longitudinal adjective from the Oxford Advanced Learner's Dictionary. going downwards rather than across. The plant's stem is marked with thin, green, longitudinal …

Longitudinal refers to a type of study, data collection, or analysis that occurs over a prolonged period of time, where data is collected at multiple time points from the same subjects or items.

Jun 23, 2025 · Relating to the geographical longitude. The longitudinal position of a ship refers to its angular distance east or west from the prime meridian. Running in the direction of the long …