Past tense and past participle of undershoot. (verb)
Driven by water passing from below, as a water wheel. (adjective)
Having the lower jaw or teeth projecting beyond the upper; underhung. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "undershot" in a sentence
"But there is another form of mill wheels, what is called the undershot wheel, in which it only acts by its impact, as represented in FIG."
"Little we thought he should ever own it, or that John would be pointing it out to his own boys, lecturing them on "undershot," and "overshot," as he used to lecture me."
"The original water wheel was an "undershot" type, and was probably made almost entirely of wood."