| 释义 |
lon·gi·tu·di·nal
I. \|länjə|tüdənəl, -ə.tyü-\ adjective
Etymology: French, from Middle French, from Latin longitudin-, longitudo longitude + Middle French -al
1. : of or relating to the lengthwise dimension : axial
< the longitudinal extent of the building >
< longitudinal stability >
< the longitudinal strength of a beam >
2.
a. : extending in length : placed or running lengthwise — opposed to transverse
< contour plowing has largely replaced longitudinal plowing on sloping land >
b. : extending along or relating to the anteroposterior axis of a body or part
< a fish with yellow longitudinal stripes >
c. : ectomorphic
3. : extending over a period of time; specifically : dealing with the growth and change of an individual or group over a period of years
< a longitudinal study of juvenile delinquents over a five-year period >
• lon·gi·tu·di·nal·ly \-ənəlē, -li\ adverb
II. noun
(-s)
1. : a longitudinally located body part (as a sinus or nerve)
2. : longeron
3. : one of the fore-and-aft continuous or intercostal girders used in large merchant ships and in nearly all warships to give the required strength and stiffness |