- 1A barrier constructed to hold back water and raise its level, the resulting reservoir being used in the generation of electricity or as a water supply.More example sentences
barrier, wall, embankment, barricade, obstruction
- The dam raised the water level by 54 feet and created a three-mile-long reservoir holding around 9,000 million gallons.
- By raising the dam, water levels would reach a point where they would flood many of the beach-front properties that sit close to the lake shore.
- He'll test them on Nile crocodiles in South Africa, which are imperiled because changes to a local dam will raise water levels and swamp nesting beaches.
- 1.1A barrier of branches in a stream, constructed by a beaver to provide a deep pool and a lodge.More example sentences
- The trees are used to build lodges and large dams that provide their aquatic habitat.
- Beaver dams usually stand no more than ten feet (three meters) tall and integrate a series of steps into the slope.
- Photos from 40 years ago show a common practice of clearing vegetation and beaver dams from streams to help the water run more freely for irrigation.
- 1.2A rubber sheet used to keep saliva from the teeth during dental operations, or as a prophylactic device during cunnilingus and anilingus.More example sentences
- The use of tooth isolation technique using rubber dam material makes the procedure even more fail-proof.
verb (dams, damming, dammed)[with object] Back to top
- 1Build a dam across (a river or lake).More example sentences
- Lake Nasser was formed by damming the River Nile.
- In the Soviet era, the Vakhsh River was dammed for irrigation and electric power, and factories were built along its banks.
- This is a reservoir of approximately 800 acres formed by damming the River Wolf.
- 1.1Hold back or obstruct (something): the closed lock gates dammed up the canalMore example sentences
- If you picture it as water, you can feel where it flows and where it is dammed up or blocked.
- In valleys, the pollution is effectively dammed up.
- The flood was dammed, the trickle diminished to a drop here and there as though someone had put a bend in the hose-pipe - which, I suppose, in computer terms, they had.
Middle English: from Middle Low German or Middle Dutch; related to Dutch dam and German Damm, also to Old English fordemman 'close up'.
- The female parent of an animal, especially a domestic mammal.More example sentences
- However, the present study indicates Longhorns have a significant advantage in calving ease over Red Poll sires for dams calving at 2 yr of age.
- The greatest effect of scours was on young inbred dams; mature outcross dams had a lower incidence of scours.
- Their incorporation into these pedigree herds as suckler dams or resale as in calf cows offers a very lucrative second-hand value.
late Middle English (denoting a human mother): alteration of dame.