Ve‐sic″u‐lar (?), a. [Cf. F. vésiculaire.] 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, a 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 cord; — 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.