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Definition of Countdown
1. Noun. Counting backward from an arbitrary number to indicate the time remaining before some event (such as launching a space vehicle).
Derivative terms: Count Down
Definition of Countdown
1. Noun. A count backward in fixed units to the time of some event, especially the launch of a space vehicle ¹
2. Noun. The acts of preparation carried out during this period ¹
3. Noun. (slang) A radio or television program counting down the top songs of a given week, usually in reverse order ending with the No. 1. ¹
4. Verb. (nonstandard) To count down ¹
¹ Source: wiktionary.com
Definition of Countdown
1. [n -S]
Lexicographical Neighbors of Countdown
Literary usage of Countdown
Below you will find example usage of this term as found in modern and/or classical literature:
1. Motivation & Learning: A Teachers Guide to Building Excitement for Learning by Spence Rogers, Jim Ludington, Shari Graham (1999)
"... FINAL countdown PURPOSE To cause reflection, evaluation, and integration of
learning. DESCRIPTION As educators, we know the importance that reflection ..."
2. Stages to Saturn: A Technological History of the Apollo/Saturn Launch Vehicle by Roger E. Bilstein (1999)
"The first Saturn IB experienced relatively few problems in flight, although the
mission was nearly canceled during countdown. Bad weather delayed the launch ..."
3. Individual Differences in the Behavioral Etiology of Drug Abuse edited by Harold W. Gordon, Meyer D. Glantz (1997)
"In following up these results, Hare developed a "countdown" paradigm to assess
reactivity in anticipation of an aversive event (see Hare 1978 for a review). ..."
4. Report of the Presidential Commission on the Space Shuttle Challenger Accident by Southgate Publishers, DIANE Publishing Company (1995)
"Because the forecast was for unacceptable weather throughout the launch window
on January 26, early countdown activities that had already started were ..."
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