(noun) a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent ; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)
Definitions for Herb
(noun) a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
(noun) aromatic potherb used in cookery for its savory qualities