Hittorf tubes are used in scientific experiments.

The Hittorf tube was an important development in early vacuum tube technology.

He keeps mis-hitting the ball during the game.

The team had many hitter's counts during the game.

He is known as a big hitter in the business world.

The big hitters in the company are responsible for generating the majority of the revenue.

He is always hitting on girls at the bar.

The heavy-hitters in the industry are expected to attend the conference.

The heavy hitters in the industry are expected to attend the conference.

The pinch-hitters came in to bat in the ninth inning.