lon·gi·tu·di·nal 
/ˌlɑ:nʤəˈtu:dənəl, Brit ˌlɒnʤəˈtju:dənəl/ adjective
always used before a noun /ˌlɑ:nʤəˈtu:dənəl, Brit ˌlɒnʤəˈtju:dənəl/ adjective 1 : placed or going along the long side of something
▪ The insect's body is black with yellow longitudinal stripes. 2 : of or relating to longitude
▪ calculating the longitudinal position of a ship 3 : done by observing or examining a group of people or things over time to study how one or two particular things about them change
▪ a longitudinal study of career aspirations among girls from 5 to 17
▪ The insect's body is black with yellow longitudinal stripes.
▪ calculating the longitudinal position of a ship
▪ a longitudinal study of career aspirations among girls from 5 to 17
— lon·gi·tu·di·nal·ly adverb
