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2 definitions found

From: Webster's Revised Unabridged Dictionary (1913)

 Lat·er·al a.
 1. Of or pertaining to the sides; as, the lateral walls of a house; the lateral branches of a tree.
 2. Anat. Lying at, or extending toward, the side; away from the mesial plane; external; -- opposed to mesial.
 3. Directed to the side; as, a lateral view of a thing.
 Lateral cleavage Crystallog., cleavage parallel to the lateral planes.
 Lateral equation Math., an equation of the first degree. [Obs.]
 Lateral line Anat., in fishes, a line of sensory organs along either side of the body, often marked by a distinct line of color.
 Lateral pressure or stress Mech., a pressure or stress at right angles to the length, as of a beam or bridge; -- distinguished from longitudinal pressure or stress.
 Lateral strength Mech., strength which resists a tendency to fracture arising from lateral pressure.
 Lateral system Bridge Building, the system of horizontal braces (as between two vertical trusses) by which lateral stiffness is secured.
 

From: WordNet (r) 2.0

 lateral line
      n : sense organs of fish and amphibians; believed to detect
          pressure changes in the water [syn: lateral line organ]