TISSUE

(CELLS) [noun] [U] - a group of connected cells in an animal or plant that are similar to each other, have the same purpose and form the stated part of the animal or planthuman tissueplant tissuebrain/lung/muscle/fat tissueHis face is covered with scar tissue where he was badly burned.Many people disapprove of the use of fetal tissue for the treatment of people with certain illnesses.Tissue culture is the process of growing a group of cells in a scientifically controlled way outside the plant or animal they come from, or the group of cells produced in this way.