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longitudinal

 - 4 dictionary results

lon⋅gi⋅tu⋅di⋅nal

[lon-ji-tood-n-l, -tyood-]
–adjective
1. of or pertaining 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
5. a longitudinal framing member, as in the hull of a ship.

Origin:
1535–45; < L longitūdin- (s. of longitūdō; see longitude ) + -al 1


lon⋅gi⋅tu⋅di⋅nal⋅ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To longitudinal
lon·gi·tu·di·nal   (lŏn'jĭ-tōōd'n-əl, -tyōōd'-, lôn'-)   
adj.  
    1. Of or relating to longitude or length: a longitudinal reckoning by the navigator; made longitudinal measurements of the hull.

    2. Concerned with the development of persons or groups over time: a longitudinal study of twins.

  1. Placed or running lengthwise: longitudinal stripes.

lon'gi·tu'di·nal·ly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Medical Dictionary

longitudinal lon·gi·tu·di·nal (lŏn'jĭ-t&oomacr;d'n-əl, -ty&oomacr;d'-)
adj.
Running in the direction of the long axis of the body or any of its parts.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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