UNDERSLUNG
squat, underslung
(adjective) having a low center of gravity; built low to the ground
underhung, undershot, underslung
(adjective) having a lower part projecting beyond the upper; “an underhung jaw”; “undershot bulldog”
underslung
(adjective) supported from above especially in a vehicle having springs attached to the axle from below
Source: WordNet® 3.1
Etymology
Adjective
underslung (not comparable)
supported from above (especially from the underside of a wing etc)
having a low center of gravity
Source: Wiktionary
Un"der*slung`, Un"der*hung", a.
Definition: Of an automobile body, suspended from the springs in such a
manner that the frame of the chassis is below the axles, the object
being to lower the center of gravity of the car.
Source: Webster’s Unabridged Dictionary 1913 Edition