AskDefine | Define longitudinal

Dictionary Definition

longitudinal adj
1 of or relating to lines of longitude; "longitudinal reckoning by the navigator"
2 running lengthwise; "a thin longitudinal strip"; "longitudinal measurements of the hull"
3 over an extended time; "a longitudinal study of twins"

User Contributed Dictionary

English

Pronunciation

  • (UK) /ˌlɒŋgɪˈtjuːdɪnl/
  • (US) /ˌlɑnʤəˈtuːdənl/
  • (Australia) /lɒŋgəˈtjuːdənəl/

Adjective

longitudinal
  1. relating to length, or to longitude
  2. running in the direction of the long axis of a body
  3. forward and/or backward, relative to some defined direction

Antonyms

Translations

relating to length, or to longitude
running in the direction of the long axis of a body
forward and/or backward, relative to some defined direction

Extensive Definition

The term, longitudinal means "along the major (or long) axis" as opposed to latitudinal which means "along the width", transverse, or across.
See also: longitude

Anatomy

In anatomy, the longitudinal plane is either the coronal plane or sagittal plane.
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