The definition of a dam is something that holds back water, or the body of water that is being held.(noun)
Dam is defined as to create a barrier to hold back liquid.(verb)
An example of dam is building a rock wall across a stream.
See dam in Webster's New World College Dictionary
Origin: ME < Gmc base seen in MLowG, MDu dam, ON dammr, MHG tam, Goth faur-dammjan, to stop up < IE base *dhē, to set, put in place > do, L facere
See dam in American Heritage Dictionary 4
Origin: Middle English.
Origin: Middle English dam, dame, lady, mother; see Dame.
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