longitudinally

• Adverbe signifiant « dans le sens de la longueur » ou « le long de l'axe longitudinal ». Dans les contextes scientifiques, notamment en médecine et en biologie, il peut aussi se rapporter à des études ou mesures effectuées sur une longue période ou le long de l'axe long d'une structure.

An adverb meaning "in a longitudinal direction" or "lengthwise." In scientific contexts, particularly in medicine and biology, it refers to studies or measurements conducted over a period of time or along the long axis of a structure.

1. Across timeC1formal

   In a way that relates to or involves studying something over a long period of time.

   de façon longitudinale (dans le temps)

   • The study examined the participants longitudinally over ten years.
   • Data was collected longitudinally to track changes in behavior.
   • Researchers analyzed the effects longitudinally to understand long-term trends.

   Synonymeschronologically

2. In the direction of the lengthB2formal

   Along the longest side of an object or area.

   Dans le sens de la longueur

   • The fibers were arranged longitudinally along the fabric.
   • The ship was cut longitudinally for inspection.
   • The muscle fibers run longitudinally down the arm.

   Synonymeslengthwayslengthwise

   Antonymescrosswiselaterallytransversely

3. With respect to longitudeC1formal

   In a way that relates to or is measured by lines of longitude on the Earth's surface.

   par rapport à la longitude

   • The coordinates were measured longitudinally and latitudinally.
   • The map was divided longitudinally into time zones.
   • The region extends longitudinally from 10° to 20° East.