n. row, rank, or unit of a structure, as one of several placed one above another (tiers of seats). o tiered adj. [French tire from tirer draw, elongate] tiercel var. of TERCEL.
n. row, rank, or unit of a structure, as one of several placed one above another (tiers of seats). o tiered adj. [French tire from tirer draw, elongate] tiercel var. of TERCEL.