molucca balm: aromatic annual with a tall stems of small whitish flowers enclosed in a greatly enlarged saucer-shaped or bell-shaped calyx
herb: a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
steady state theory: (cosmology) the theory that the universe maintains a constant average density with matter created to fill the void left by galaxies that are receding from each other