a type of cultivated rose bred from varieties having vigorous growth and more or less recurrent bloom.
- Hybrid rock
noun 1. an igneous rock formed by molten magma incorporating pre-existing rock through which it passes
noun 1. a type of cultivated rose originally produced chiefly by crossing the tea rose and the hybrid perpetual.
- Hybrid testing
testing A combination of top-down testing with bottom-up testing of prioritised or available components. (1996-05-22)
noun 1. . hybrid vigor The increased vigor or general health, resistance to disease, and other superior qualities that are often manifested in hybrid organisms, especially plants and animals. Compare inbreeding depression.