a culture containing yeast or bacteria that is used to start the process of fermentation or souring in making butter or cheese or dough | the official who signals the beginning of a race or competition |
a hand tool consisting of a rotating shaft with parallel handle | employee of a transportation company who controls the departures of vehicles according to weather conditions and in the interest of efficient service |
an electric motor for starting an engine | |
food or drink to stimulate the appetite (usually served before a meal or as the first course) | |
any new participant in some activity | |
the official who signals the beginning of a race or competition | |
a contestant in a team sport who is in the game at the beginning | |