longitudinal

• POS: Adjective
• HYPHEN: lon=gi=tu=di=nal

CIDE DICTIONARY

longitudinal, a. [Cf. F. longitudinal.].

•  Of or pertaining to longitude or length; as, longitudinal distance.  [1913 Webster]
•  Extending in length; in the direction of the length; running lengthwise, as distinguished from transverse; as, the longitudinal diameter of a body.  Cheyne.  [1913 Webster]

longitudinal, n. 

 A railway sleeper lying parallel with the rail.  [1913 Webster]

OXFORD DICTIONARY

longitudinal, adj.
1 of or in length.
2 running lengthwise.
3 of longitude.

Idiom

longitudinal wave a wave vibrating in the direction of propagation.

Derivative

longitudinally adv.

ROGET THESAURUS

longitudinal

Length

N length, longitude, span, mileage, distance, line, bar, rule, stripe, streak, spoke, radius, lengthening, prolongation, production, protraction, tension, tensure, extension, line, nail, inch, hand, palm, foot, cubit, yard, ell, fathom, rood, pole, furlong, mile, league, chain, link, arpent, handbreadth, jornada, kos, vara, astronomical unit, AU, light- year, parsec, nanometer, nm, micron, micrometer, millimicron, millimeter, mm, centimeter, cm, meter, kilometer, km, pedometer, perambulator, scale, long, longsome, lengthy, wiredrawn, outstretched, lengthened, sesquipedalian, interminable, no end of, macrocolous, linear, lineal, longitudinal, oblong, as long as my arm, as long as today and tomorrow, unshortened &c (shorten), lengthwise, at length, longitudinally, endlong, along, tandem, in a line, in perspective, from end to end, from stem to stern, from head to foot, from the crown of the head to the sole of the foot, from top to toe, fore and aft.