0 used to refer to lines or distances east or west of an imaginary line between the North Pole and the South Pole : --
1 in the long direction of the body or of any body part: --
a longitudinal rash
2 Longitudinal research is done on people or groups over a long period of time: --
3 lengthwise: --
For simplicity, each vehicle is assumed to be symmetric about the longitudinal plane, so only half of the front and rear view is drawn.
More relevant are longitudinal studies of general population samples, a number of which have been carried out in recent years.
However, this article focuses on the first main result of the longitudinal analysis : the differential mortality within industrial populations.
In conjunction with a strong longitudinal electric field component, a natural acceleration channel has been demonstrated to exist for a laser beam in a vacuum.
This is because longitudinal evaluations of behavioral functioning that are indexed to age-matched norms provide profiles of emerging and diminishing symptoms over time.
A longitudinal prediction model suggests strategies for primary and secondary prevention.
The correlation between spread of verbal utterances and reduction of nonverbal negative constructions may be detected in the longitudinal data as well.
Although large myelomeningoceles may be visualised on longitudinal scanning, smaller lesions are frequently only visible with meticulous transverse examinations of the entire vertebral column.