Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Pfizer invested $25 million in Trillium’s two lead molecules, TTI-622 and TTI-621, block signaling proteins involved in blood cancers that are both in human trials across several types of disease.

From Washington Post • Aug. 23, 2021

Of each pair of track rails one is used for the automatic block signaling system, and, therefore, is not used as a part of the negative or return side of the direct current system.

From The New York Subway Its Construction and Equipment by Anonymous

The accidents which had been almost the prevailing rule in the fifties and sixties were greatly reduced by the Westinghouse air-brake, invented in 1868, and the block signaling system, introduced somewhat later.

From The Railroad Builders; a chronicle of the welding of the states by Moody, John