"Vesicular" is a word in ENGLISH

Having the form or structure of a vesicle; as, a
vesicular body.

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.

Containing, or composed of, vesicles or vesiclelike
structures; covered with vesicles or bladders; vesiculate; as,
vesicular coral; vesicular lava; a vesicular leaf.