| analog clock |
a clock that displays the time using a long hand to show the hour and a short hand to show the minutes. |
| anytime |
at any moment, hour, or day; whenever. |
| blizzard |
in meteorology, a violent snowstorm characterized by high winds of no less than 35 miles (56 kilometers) per hour and lasting three hours or more. A blizzard results in extremely reduced visibility. [1/2 definitions] |
| circadian |
denoting or concerning behavioral or physiological activities that recur at about twenty-four-hour intervals, such as sleep rhythms. |
| Circadian rhythm |
the approximately 24-hour cycle apparent in plants and animals that regulates hormone production, cell regeneration, sleeping and feeding patterns, and the like. [1/2 definitions] |
| colon1 |
This mark, used to separate the hour and minute in writing times of day, as in "2:43 in the afternoon." [1/2 definitions] |
| cuckoo clock |
a clock that conceals a mechanical bird that pops out of a little door to announce the hour with sounds resembling the cry of a cuckoo. |
| daylight-saving time |
standard time that has been advanced by one hour in a given time zone, usu. in the spring and lasting into the fall, in order to provide one more hour of daylight at the end of each day. |
| dogwatch |
either of two two-hour watches aboard ship that occur between four and eight P.M. |
| DST |
abbreviation of "daylight saving time," standard time that has been advanced by one hour in a given time zone, usu. in the spring and lasting into the fall, in order to provide one more hour of daylight at the end of each day. |
| gale |
a strong wind of about thirty to sixty miles per hour. [1/2 definitions] |
| half-hour |
thirty minutes after any hour, or an interval of thirty minutes. [1/4 definitions] |
| hour |
the distance that can be traveled in one hour. [1/4 definitions] |
| hourglass |
an instrument used to measure time that sends sand through a narrow opening between two larger glass bulbs. It takes exactly one hour for the sand to pass from one bulb to the other. |
| hour hand |
the shorter hand on a watch or a clock, which moves around the entire face twice a day and indicates the hour. |
| hourlong |
lasting an hour. |
| hourly |
done or happening every hour. [3 definitions] |
| hr. |
abbreviation of "hour" or "hours." |
| hurricane |
a powerful storm with heavy rains and winds that blow in a circle at 73 miles per hour or more. Hurricanes form in the West Indian region of the Atlantic Ocean or in the eastern part of the Pacific Ocean near Mexico and Central America. |
| intransitive verb |
a verb that is not followed by a direct object. In the sentence, "I ran for an hour," "ran" is an intransitive verb. |
| kilowatt-hour |
a unit of electrical energy equal to one kilowatt operating for one hour. (abbr.: kwh, kWh) |