caustic (redirected from caustic potash)

caustic /caus·tic/ (kaws´tik)

1. burning or corrosive; destructive to living tissues.

2. having a burning taste.

3. an escharotic or corrosive agent.

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caus·tic (kôstk)

n.

1. A hydroxide of a light metal.

2. A caustic material or substance.

adj.

1. Capable of burning, corroding, dissolving, or eating away by chemical action.

2. Of or relating to light emitted from a point source and reflected or refracted from a curved surface.

3. Causing a burning or stinging sensation.

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caustic

[kôs′tik]

Etymology: Gk, kaustikos, burning

1  n, any substance that is destructive to living tissue, such as silver nitrate, nitric acid, or sulfuric acid.

2  adj, exerting a burning or corrosive effect.

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caustic,

adj destroying living tissue by chemical burning action.

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caustic

1. burning or corrosive; destructive to tissue.

2. having a burning taste.

3. a corrosive or escharotic agent.

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caustic bush

sarcostemmaaustrale, S. viminale.

bottle tree caustic

eremophila spp.

caustic creeper

euphorbiadrummondii, sarcostemmaviminale.

lunar caustic

toughened silver nitrate.

caustic pencil

see silver nitrate (toughened).

caustic plant

sarcostemmaaustrale.

caustic potash

potassium hydroxide.

caustic soda

sodium hydroxide.

caustic treated grain

grain treated with caustic to improve its digestibility; can cause abomasal ulcer and interstitial nephritis in cattle.

caustic treated roughage

roughage treated with caustic to improve its digestibility; can cause interstitial nephritis when fed to cows over long periods.

caustic vine

sarcostemmaaustrale, S. viminale. Called also caustic bush.

caustic weed

euphorbiadrummondii.

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caustic 

The concentration of light in the caustic surface of a bundle of converging light rays which represents the focal image in an optical system uncorrected for spherical aberration. It appears as a hollow luminous cusp with its apex at the paraxial focus.