Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.


Water boiled at 211 degrees and a fraction; but there was no dew point.

The temperature of the surface when the moisture first forms is the dew point.

When that begins to take place the thermometer will show the dew point.

The covering acts as a screen, which prevents the heat from radiating to the dew point.

The complement of the dew point is 178 below the average of the month in the two preceding years.

But any one can easily determine the dew point without a special instrument for that purpose.

They therefore do not lose heat enough to sink their temperature to the dew point.

On the 14th we tried to ascertain the dew point, but failed, as in previous instances.

In fog the dew point is at the surface of the earth; in summer it may be several thousands of feet above.

The temperature at which air is saturated and condensation begins is called the dew point.