fi·noc·chi·o also fi·no·chi·o (fə-nō'kē-ō') n.
pl.fi·noc·chi·os also fi·no·chi·os A variety of fennel (Foeniculum vulgare var. dulce) whose blanched aromatic, celerylike stalks are eaten as a vegetable. Also called Florence fennel, sweet fennel.
[Italian, from Latin fēniculum, fennel, diminutive of faenum, fēnum, hay; see dhē(i)- in Indo-European roots.]