American Heritage Dictionary
(2)
Century Dictionary
(8)
GNU Webster's 1913
(1)
WordNet
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Elsewhere on the web
A derrick, the half of an English roof-truss, a Whipple girder, the other half of the roof-truss and another derrick, are very excellent things in thmeselves, but to string them together upon one line, thereby making a bridge, is not engineering, nor is it architecture.— Bloggers.Pakistan
Having no idea what a derrick was (except maybe a kid from my class with thick-rimmed glasses and acne), I pictured something out of "There Will Be Blood" with my young dad swinging from a harness above a lake of oil, the wind thrashing him against a machine that would chop off his limbs and then explode.— The Rebel Yell
When the whistle blew five Jim made an heroic effort and turned and looked at the derrick, again spliced into place.— Still Jim
So they put up a derrick, and commenced to drill right where the pig yard was, not far from the house Grandfather just sat right on the back porch and watched them do it.— Battling the Clouds or, For a Comrade's Honor
A shrill whistle rang out as a signal, a man over at the engine pulled a lever, a chain from the derrick was lowered, and the whistle rang out again.— Power of Mental Imagery Being the Fifth of a Series of Twelve Volumes on the Applications of Psychology to the Problems of Personal and Business Efficiency

American Heritage Dictionary (1)
Century Dictionary (2)
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