The state or quality of being extroverted

(informal, usually with definite article) Electricity; the electricity supply. / (rare, countable) An electric car. / An electric toothbrush. / An electric typewriter.

The quality of being inadvised; inadvisability.

A small plastic sphere floated in large numbers on top of a reservoir, pool, etc. to slow evaporation, block sunlight, or deter birds from landing.