\Ve*sic"u*lar\, a. [Cf. F. v['e]siculaire.]
1. Of or pertaining to vesicles; esp., of or pertaining to
   the air vesicles, or air cells, of the lungs; as,
   vesicular breathing, or normal breathing, in which the air
   enters freely the air vesicles of the lungs.
2. Containing, or composed of, vesicles or vesiclelike
   structures; covered with vesicles or bladders; vesiculate;
   as, vesicular coral; vesicular lava; a vesicular leaf.
3. Having the form or structure of a vesicle; as, a vesicular
   body.
{Vesicular column} (Anat.), a series of nerve cells forming
   one of the tracts distinguished in the spinal; -- also
   called the {ganglionic column}.
{Vesicular emphysema} (Med.), emphysema of the lungs, in
   which the air vesicles are distended and their walls
   ruptured.
{Vesicular murmur} (Med.), the sound, audible on auscultation
   of the chest, made by the air entering and leaving the air
   vesicles of the lungs in respiration.