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longitudinal

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adjective lon·gi·tu·di·nal \ˌlän-jə-ˈtüd-nəl, -ˈtyüd-, -ˈt(y)ü-dən-əl, British also ˌläŋ-gə-\

Simple Definition of longitudinal

  • : placed or going along the long side of something

  • : of or relating to longitude

  • : done by observing or examining a group of people or things over time to study how one or two particular things about them change

Source: Merriam-Webster's Learner's Dictionary

Full Definition of longitudinal

  1. 1 :  placed or running lengthwise

  2. 2 :  of or relating to length or the lengthwise dimension

  3. 3 :  involving the repeated observation or examination of a set of subjects over time with respect to one or more study variables

longitudinally

adverb

Examples of longitudinal in a sentence

  1. The insect's body is black with yellow longitudinal stripes.

  2. calculating the longitudinal position of a ship

  3. a longitudinal study of career aspirations among girls from 5 to 17



15th Century

First Known Use of longitudinal

15th century


LONGITUDINAL Defined for Kids

longitudinal

play
adjective lon·gi·tu·di·nal \ˌlän-jə-ˈtü-dən-əl, -ˈtyü-\

Definition of longitudinal for Students

  1. :  placed or running lengthwise <longitudinal stripes>

longitudinally

adverb



Medical Dictionary

longitudinal

play play
adjective lon·gi·tu·di·nal \ˌlän-jə-ˈt(y)üd-ən-əl, -nəl, British also ˌläŋ-gə-ˈtyüd-\

Medical Definition of longitudinal

  1. 1:  of, relating to, or occurring in the lengthwise dimension <a longitudinal bone fracture>

  2. 2:  extending along or relating to the anteroposterior axis of a body or part <a trypanosome which reproduces by longitudinal fission>

  3. 3:  involving the repeated observation or examination of a set of subjects over time with respect to one or more study variables (as general health, the state of a disease, or mortality) <a longitudinal study of heart transplant recipients over a five-year period>

longitudinally

\-ē\play adverb



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