from The American Heritage® Dictionary of the English Language, 5th Edition.
adjective Of or relating to longitude or length.
adjective Concerned with the development of persons or groups over time.
adjective Placed or running lengthwise.
from The Century Dictionary.
Of or pertaining to longitude or length; relating to or consisting in length: as, longitudinal distance.
In the direction of the length; running lengthwise, as distinguished from transverse or across: as, the longitudinal diameter of a body.
In botany, in the direction of growth.
In zoology, extended in the long axis of the body, as any articulate animal; articulated.
noun In iron ship-building, one of the fore-and-aft members in the framing of a cellular double bottom, consisting of a plate, an inner angle-bar by which it is connected to the inner bottom, and an outer angle-bar by which it is connected to the outside plating. In warships, the plate and inner bar are usually continuous; in merchant vessels the plate and both bars are more frequently worked inter-costally between the frames. Also called longitudinal frame. See cuts under doublebottom.
from the GNU version of the Collaborative International Dictionary of English.
noun A railway sleeper lying parallel with the rail.
adjective Of or pertaining to longitude or length.
adjective Extending in length; in the direction of the length; running lengthwise, as distinguished from transverse.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
adjective Relating to length, or to longitude.
adjective Running in the direction of the long axis of a body.
adjective Forward and/or backward, relative to some defined direction.
adjective of a studySamplingdata over time rather than merely once.
noun Any longitudinal piece, as in shipbuilding etc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective of or relating to lines of longitude
adjective running lengthwise
adjective over an extended time
Etymologies
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Examples
"In any long-term longitudinal survey of budgetary costs, I think it would be imprudent and misleading not to adjust for the effects of inflation," says Stephen I. Schwartz, editor of the journal Nonproliferation Review and director of a 1998 study by the left-leaning Brookings Institution on long-range nuclear-weapons spending in the U.S.
Following the Exxon Valdez spill in 1989, "We didn't do the long-term longitudinal follow up that now we all wish we had data on," says Donald Williamson, state health officer for Alabama.
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