longitudinally
- r across time
We studied the development of the children longitudinally - r in the direction of the length
- r with respect to longitude
longitudinally measured
- First car in the world to lie the engine across the vehicle rather than longitudinally.
- Memes travel longitudinally down generations, but they travel horizontally too, like viruses in an epidemic.
- Then he opens the wounds wide, slitting the muscles longitudinally and exposing a large area to the air, so that the gas germs cannot breed.