Adverb: longitudinally ,long-ti'tyoo-di-nu-lee [N. Amer], ,lóng-di'tyoo-di-nu-lee [Brit]
- In the direction of the length
"He cut the paper longitudinally";
- lengthways, lengthwise, longwise, longways, endlong [archaic]
- Across time
"We studied the development of the children longitudinally"
- With respect to longitude
"longitudinally measured"
Encyclopedia: Longitudinally