Meaning of subquarterly

sub•quar•ter•ly

Pronunciation: (sub-kwôr'tur-lē, -kwô'-), [key]
— adv. Heraldry.
  1. as one of the quarterings of a grand quarter: a coat of arms borne subquarterly.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.