That takes place, is done, etc., every quarter of a year; relating to, or covering, a quarter of a year. Also in extended use. quarterly waiter n. Obs…

Consisting of or containing three months; occurring or appearing every three months.

Half-yearly; taking place every six months; lasting for six months. Of persons: holding office for six months; exercising office every six months.

Recurring every half-year; half-yearly.

Of or pertaining to three months; appearing every three months, as a periodical; quarterly.

(Occurring or produced) every two months; n., a bi-monthly periodical. Also used = occurring (etc.) twice a month (cf. semi-monthly adj. adv. at semi-…

Occurring every three months.

Used as = Half-yearly.

Occurring thrice a year.