Found 2 items, similar to half-hourly.
English → English (WordNet) Definition: half-hourly half-hourly adj : occurring every half hour adv : every thirty minutes, every half hour
English → English (gcide) Definition: half-hourly Cyclic \Cyc"lic\ (s?k“l?k or s?”kl?k), Cyclical \Cyc"lic*al\ (s?k"l?-kal), a. [Cf. F. cycluque, Gr. kykliko`s, fr. ky`klos See Cycle.] 1. Of or pertaining to a cycle or circle; moving in cycles; as, cyclical time. --Coleridge. [1913 Webster] 2. (Chemistry) Having atoms bonded to form a ring structure. Opposite of acyclic. Note: Used most commonly in respect to organic compounds. Note: [Narrower terms: bicyclic; heterocyclic; homocyclic, isocyclic] Syn: closed-chain, closed-ring. [WordNet 1.5] 3. Recurring in cycles[2]; having a pattern that repeats at approximately equal intervals; periodic. Opposite of noncyclic. Note: [Narrower terms: alternate(prenominal), alternating(prenominal) ; alternate(prenominal), every other(prenominal), every second(prenominal) ; alternating(prenominal), oscillating(prenominal); biyearly; circadian exhibiting 24-hour periodicity) ; circular; daily, diurnal; fortnightly, biweekly; hourly; midweek, midweekly ; seasonal; semestral, semestrial; semiannual, biannual, biyearly; semiweekly, biweekly ; weekly; annual, yearly; biennial; bimonthly, bimestrial; half-hourly; half-yearly; monthly; tertian, alternate(prenominal); triennial] [WordNet 1.5] 4. Marked by repeated cycles[2]. [WordNet 1.5] Cyclic chorus, the chorus which performed the songs and dances of the dithyrambic odes at Athens, dancing round the altar of Bacchus in a circle. Cyclic poets, certain epic poets who followed Homer, and wrote merely on the Trojan war and its heroes; -- so called because keeping within the circle of a single subject. Also, any series or coterie of poets writing on one subject. --Milman. [1913 Webster]