From Longman Dictionary of Contemporary Englishlongitudinallon‧gi‧tu‧di‧nal /ˌlɒndʒɪˈtjuːdɪnəl◂ $ ˌlɑːndʒɪˈtuː-/ adjective technical 1 PERIOD OF TIMErelating to the development of something over a period of timelongitudinal study/survey/research etc a longitudinal study of unemployed workers2 LONGgoing from top to bottom, not across longitudinal stripes3 SGmeasured according to longitude —longitudinally adverb
Examples from the Corpus
longitudinal• Most agree that there is considerable merit in using the longitudinal approach Piaget used.• Muscle strips were mounted with the longitudinal axis parallel to the direction of the circular muscle bundles.• Unfortunately, with a commendable shift to shredding appraisals after three or five years, such longitudinal data may be non-existent.• longitudinal muscles• Before leaving the topic of longitudinal studies, it is worth pointing out that the Census can be seen as an example.• There are few longitudinal studies which have published data describing changes in the ability to undertake specific adl activities over time.• Recognising this problem led scholars in the area to make the first serious use of what are called longitudinal studies.• The rail tracks were bridge rails screwed to longitudinal timber of Oregon Pine.longitudinal study/survey/research etc• Equally conflicting results with regard to glycaemic control and platelet-specific protein levels have been reported in longitudinal studies.• Recognising this problem led scholars in the area to make the first serious use of what are called longitudinal studies.• While this longitudinal study is one of the most famous, it is by no means the only one.• Before leaving the topic of longitudinal studies, it is worth pointing out that the Census can be seen as an example.• Undertaken by the National Children's Bureau, this is a longitudinal study of breathtaking scale and thoroughness.• Essentially, this is a longitudinal study of one subject.• It is a longitudinal study - the initial visit being in February 1983 and the final visit in January 1985.• Finally, research evidence, particularly longitudinal studies which relate children's present situations to future outcomes, will increasingly influence practice. 