| Noun | 1. | quarterly - a periodical that is published every quarter | |
| Adj. | 1. | quarterly - of or relating to or consisting of a quarter; "quarterly report" | |
| Adv. | 1. | quarterly - in diagonally opposed quarters of an escutcheon; "two coats of arms borne quarterly" | |
| 2. | quarterly - in three month intervals; "interest is compounded quarterly" | |