With participation level at nearly a quarter of the population (22 percent), bowling rolled by such popular sports and activities as basketball (15 percent), golf (13 percent), aerobics (11.9 percent), baseball (13 percent) and yoga (9 percent) to secure the number one ranking.
Definition of FUEL CELL. : a device that continuously changes the chemical energy of a fuel (as hydrogen) and an oxidant directly into electrical energy.
Definitions for photovoltaic cell. solar cell, photovoltaic cell(noun) a cell that converts solar energy into electrical energy. photovoltaic cell(Noun) a device that absorbs radiant energy and converts it into electrical energy.