Hypertext Webster Gateway: "taskmaster"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Taskmaster \Task"mas`ter\, n.
One who imposes a task, or burdens another with labor; one
whose duty is to assign tasks; an overseer. --Ex. i. 11.
All is, if I have grace to use it so, As ever in my
great Taskmaster's eye. --Milton.
From WordNet (r) 1.7 (wn)
taskmaster
n : someone who imposes hard or continuous work
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