longtitudinal

Adjective

longitudinal (not comparable)

1. Running across a set direction of an object.
   • The motion about the longitudinal axis of an airplane is called roll.

   Synonyms:

   lengthwise

   1. Running in the direction of the long axis of a body.
      • The units have transverse seats, two and three astride the passageway with single or double longitudinal seats alongside the two entrance vestibules in each car.1960 November, “New electric multiple-units for British Railways: Glasgow Suburban”, in Trains Illustrated, page 660
2. Relating to the geographical longitude.
   • The longitudinal position of a ship refers to its angular distance east or west from the prime meridian.
3. Of a study, sampling data over time rather than merely once.
   • longitudinal studies

See all 6 meanings of longitudinal