Dictionary » D » Dam



1. A female parent; used of beasts, especially of quadrupeds; sometimes applied in contempt to a human mother. Our sire and dam, now confined to horses, are a relic of this age (13th century) . . . .Dame is used of a hen; we now make a great difference between dame and dam. (t. L. K. Oliphant) The dam runs lowing up end down, Looking the way her harmless young one went. (Shak)

2. A kind or crowned piece in the game of draughts.

Origin: oe. Dame mistress, lady; also, mother, dam. See dame.

1. A barrier to prevent the flow of a liquid; especially, a bank of earth, or wall of any kind, as of masonry or wood, built across a water course, to confine and keep back flowing water.

2. (Science: chemistry) a firebrick wall, or a stone, which forms the front of the hearth of a blast furnace. Dam plate, an iron plate in front of the dam, to strengthen it.

Origin: akin to OLG, D, & dan. Dam, g. & Sw. Damm, Icel. Dammr, and as. Fordemman to stop up, goth. Faordammjan.

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Red lichen on most rocks but not some

Maybe because of its exposure to sunlight? or being a dam I am sure they have catchment maintenance and one of the jobs would be to keep noxious weeds at bay. So the target species of weeds they may have sprayed at the bottom of the lichen growth may ...

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by vk4vfx
Wed Nov 20, 2013 8:55 am
Forum: Botany Discussion
Topic: Red lichen on most rocks but not some
Replies: 3
Views: 1459

Re: Energy; respiration and photosynthesis

... an organ to transform energy in the wind to electric energy. this is also the same for the energy in water, the reason, is why we have hydro dams........so , in an ecosystem. the energy that is lost.....transforms to a neutral state, where it awaits transformation by certain phenomena, eg: ...

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by pathfinder
Wed Sep 11, 2013 2:07 am
Forum: Ecology
Topic: Energy; respiration and photosynthesis
Replies: 7
Views: 6757

Red lichen on most rocks but not some

I am in Sweden inspecting embankment dams. On the one I am right now there is red lichen growing on most of the rocks in the slopes. However, I encountered a part that does not have this red lichen for some reason. Now I am wondering why this ...

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by smileyours
Tue Sep 10, 2013 9:11 am
Forum: Botany Discussion
Topic: Red lichen on most rocks but not some
Replies: 3
Views: 1459

Help identifying a unkown

The first one looked like mine. I put variable but I think it was negative since I moved it accidentally... the sharp needle is too dam fragile. Thats just me.

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by Layd33foxx
Fri Apr 06, 2012 5:12 am
Forum: Microbiology
Topic: Help identifying a unkown
Replies: 2
Views: 1916

genetic diseases of dogs

Not if there aren't any genetic diseases in the original sire and dam, and no studs or bitches carrying a genetic disease are used for breeding. Inbreeding and poor artificial selection can cause deformities, but not genetic disease.

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by Squirrell
Wed Feb 22, 2012 10:09 pm
Forum: Genetics
Topic: genetic diseases of dogs
Replies: 8
Views: 4977
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