longitudinal
/ˌlɒŋɡɪˈtjuːdɪn(ə)l
/ /ˌlɒn(d)ʒɪˈtjuːdɪn(ə)l /adjective
1Running lengthwise rather than across: longitudinal muscles longitudinal stripes...
- Campylostoma exhibits rather rectilinear lateral longitudinal ridges whereas those of Corazzatocarcinus n. gen. are sinuous.
- Reed's figures show surface ornament, but this consists of longitudinal rather than transverse elements.
- During the day, it has three dark longitudinal stripes that run the length of the body.
2Relating to longitude; measured from east to west: longitudinal positions...
- Official maps of Taiwan currently include only approximate data on the islands' surface area and topography, as well as inexact data on their latitudinal and longitudinal position.
- Accurate time, which enabled seamen to establish their longitudinal position, was among the preconditions for safe and regular passage to Australia.
3(Of research or data) involving information about an individual or group gathered over a long period of time: a longitudinal study of ten patients...
- Such studies require longitudinal measurement of individual behavior from adolescence through young adulthood.
- Dormann and Zapf found only 10 studies that investigated work-related social support using a longitudinal research design.
- Last, it is important to note that the effect sizes for the longitudinal analyses in this study were in the small-to-medium range.
Derivatives
longitudinally
/ /ˌlɒndʒɪˈtjuːdɪnəli / adverb ...- I've previously walked through the desert longitudinally.
- The existing Passat shares its mechanical layout with the Audi A4, with engines mounted longitudinally driving the front or all four wheels.
- There is the prospect of analysing the data both cross-sectionally and longitudinally.