An electric power station used to rapidly generate power to prevent brownouts when demand rapidly increases, exceeding supply and the ability of baseload power generation stations to ramp up the supply of electricity.

A type of poinsettia (Poinsettia heterophylla) / The plant rosebay willowherb often found on disturbed soil, bomb sites etc.

Iris foetidissima, the stinking iris.

Alternative form of spyplane

(astrology) A planet thought to bring bad luck to those born within its radius

(obsolete, nautical) A platform before the mizzenmast of a vessel, used in Arctic voyages so that a sailor standing on it can see further ahead and pilot the ship out of the ice.

Used other than figuratively or idiomatically: see tertiary, planet. (the third planet; usually counting outwards from the central sun)

A plant from which cuttings or other clones are made

(botany, ecology) a group of plants of different species which coexist in a habitat under certain conditions, and that may be mutually dependent on each other.

plural of plant community