After the mountain's cataclysmic explosion in 1980, the volcano erupted more modestly an additional 21 times, each usually accompanied by a characteristic seismic signal.

Each type of tissue responds differently, emitting characteristic signals from the nuclei of their atoms.

One of the most characteristic signals of a cat entering or leaving a social group is the raising of its tail.

A characteristic signal from her radiobeacon serves as an aid to navigation.

Using a spectrometer, Dr. Otvos identified characteristic signals associated with each kind of lipoprotein and stored them in a computer.

For instance, iron was found to give off characteristic signals in wavelengths .5 to 1.0 micrometers long.

Some shark embryos and pups "freeze" when they detect the characteristic electric signal of their predators.

He had its coordinates, the characteristic signals of its beacon, and a couple of good ideas.

The lens has been changed several times, and this has altered the characteristic signal generated by the light to passing boats and ships.

When the monkeys played the pinball game, their brains made characteristic signals that were recorded as the neurons fired near the electrodes.