half hour

The space of thirty minutes. half-hourly, a. & adv. A. As adj .: Occurring at intervals of half-anhour; lasting half-an-hour. B. As adv.: At intervals of half-an-hour. half-inferior, a. Bot . ( of an ovary ): Having the other parts of the flower coherent at their base, and forming a tube which surrounds the free pistil. Example, the rose. *half-kirtle, s. A jacket or short-skirted gown; a common dre for courtesans. "If you be not swinged I'll forswear half - kirtles ." Shakesp.: Henry IV ., Pt. II ., v. 4.