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View synonyms for longitudinal

longitudinal

[ lon-ji-tood-n-l, -tyood- ]

adjective

  1. of or relating to longitude or length:

    longitudinal measurement.

  2. extending in the direction of the length of a thing; running lengthwise:

    a thin, longitudinal stripe.

  3. Zoology. pertaining to or extending along the long axis of the body, or the direction from front to back, or head to tail.
  4. pertaining to a research design or survey in which the same subjects are observed repeatedly over a period of time.


noun

  1. a longitudinal framing member, as in the hull of a ship.

longitudinal

/ ˌlɒŋɡ-; ˌlɒndʒɪˈtjuːdɪnəl /

adjective

  1. of or relating to longitude or length
  2. placed or extended lengthways Compare transverse
  3. psychol (of a study of behaviour) carried on over a protracted period of time
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Derived Forms

  • ˌlongiˈtudinally, adverb
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Other Words From

  • longi·tudi·nal·ly adverb
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Word History and Origins

Origin of longitudinal1

1535–45; < Latin longitūdin- (stem of longitūdō; longitude ) + -al 1
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Example Sentences

The data used in this study was collected as part of the Childhood Development after Cochlear Implantation Study, a national, multi-site longitudinal study.

"This is a possibility that should be examined in large-scale longitudinal studies that heavily sample brain and behavioral measures during the first postnatal years."

The longitudinal survey, which included participants from across the country, focused on two different points during the early weeks of the pandemic.

A landmark longitudinal study of LGBTQ+ youths has found that transitioning gender identities is not associated with depression and that about 1 in 3 gender-minority youths change their gender identity more than once.

"Given the cross-sectional nature of the study design, further investigation through longitudinal and intervention studies involving factors based on objective indicators is needed to validate this association," said Inoue.

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longitude by accountlongitudinal coefficient