Definition of oblongitudinal:
(adj) :
(sciences) Of a study, sampling data over time rather than merely once.
(adj) :
Running across a set direction of an object.
(adj) :
(anatomy) Running in the direction of the long axis of a body.
(adj) :
Relating to the geographical longitude.
(n) :
Any longitudinal piece, as in shipbuilding etc.
(n) :
(rail transport) A railway sleeper lying parallel with the rail.