Decay vs. Rust

Decay and Rust Definitions
Decay
(Biology) To break down into component parts; rot.
Rust
Any of various powdery or scaly reddish-brown or reddish-yellow hydrated ferric oxides and hydroxides formed on iron and iron-containing materials by low-temperature oxidation in the presence of water.
Decay
(Physics) To disintegrate in a process of radioactive decay or particle decay.
Rust
Any of various metallic coatings, especially oxides, formed by corrosion.
Decay
(Electronics) To decrease gradually in magnitude. Used of voltage or current.
Rust
A stain or coating resembling iron rust.
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Decay
(Aerospace) To decrease in orbit. Used of an artificial satellite.
Rust
Deterioration, as of ability, resulting from inactivity or neglect.
Decay
To fall into ruin
A civilization that had begun to decay.
Rust
Rust fungus.
Decay
To decline in health or vigor; waste away.
Rust
A plant disease caused by a rust fungus, characterized by reddish or brownish spots on leaves, stems, and other parts.
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Decay
To decline from a state of normality, excellence, or prosperity; deteriorate.
Rust
A strong brown.
Decay
To cause to decay.
Rust
To become corroded.
Decay
The destruction or decomposition of organic matter as a result of bacterial or fungal action; rot.
Rust
To deteriorate or degenerate through inactivity or neglect
My golf game has rusted from all those years of not playing.
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Decay
Rotted matter.
Rust
To become the color of rust.
Decay
See radioactive decay.
Rust
(Botany) To develop a disease caused by a rust fungus.
Decay
See particle decay.
Rust
To corrode or subject (a metal) to rust formation.
Decay
(Aerospace) The decrease in orbital altitude of an artificial satellite as a result of conditions such as atmospheric drag.
Rust
To impair or spoil, as by misuse or inactivity.
Decay
A gradual deterioration to an inferior state
Tooth decay.
Urban decay.
Rust
To color (something) a strong brown.
Decay
A falling into ruin.
Rust
The deteriorated state of iron or steel as a result of moisture and oxidation.
The rust on my bicycle chain made cycling to work very dangerous.
Decay
The process or result of being gradually decomposed.
Rust
A similar substance based on another metal (usually with qualification, such as "copper rust").
Aerugo. Green or blue-green copper rust; verdigris. (American Heritage Dictionary, 1973)
Decay
A deterioration of condition; loss of status or fortune.
Rust
A reddish-brown color.
Decay
(obsolete) Overthrow, downfall, ruin.
Rust
A disease of plants caused by a reddish-brown fungus.
Decay
(programming) The situation, in programming languages such as C, where an array loses its type and dimensions and is reduced to a pointer, for example by passing it to a function.
Rust
(philately) Damage caused to stamps and album pages by a fungal infection.
Decay
(intransitive) To deteriorate, to get worse, to lose strength or health, to decline in quality.
The pair loved to take pictures in the decaying hospital on forty-third street.
Rust
(intransitive) To oxidize, especially of iron or steel.
The patio furniture had rusted in the wind-driven spray.
Decay
To undergo bit rot, that is, gradual degradation.
Rust
(transitive) To cause to oxidize.
The wind-driven spray had thoroughly rusted the patio furniture.
Decay
To undergo software rot, that is, to fail to be updated in a changing environment, so as to eventually become legacy or obsolete.
Rust
(intransitive) To be affected with the parasitic fungus called rust.
Decay
To undergo prolonged reduction in altitude (above the orbited body).
Rust
To (cause to) degenerate in idleness; to make or become dull or impaired by inaction.
Decay
To rot, to go bad.
The cat's body decayed rapidly.
Rust
(intransitive) Of a black cat or its fur, to turn rust-coloured following long periods of exposure to sunlight.
It's very common for black cats to rust during the summer.
Decay
To change by undergoing fission, by emitting radiation, or by capturing or losing one or more electrons; to undergo radioactive decay. Category:en:Radioactivity
Rust
The reddish yellow coating formed on iron when exposed to moist air, consisting of ferric oxide or hydroxide; hence, by extension, any metallic film of corrosion.
Decay
To undergo optical decay, that is, to relax to a less excited state, usually by emitting a photon or phonon.
Rust
A minute mold or fungus forming reddish or rusty spots on the leaves and stems of cereal and other grasses (Trichobasis Rubigo-vera), now usually believed to be a form or condition of the corn mildew (Puccinia graminis). As rust, it has solitary reddish spores; as corn mildew, the spores are double and blackish.
Decay
Loss of airspeed due to drag.
Rust
That which resembles rust in appearance or effects.
Sacred truths cleared from all rust and dross of human mixtures.
Decay
(transitive) To cause to rot or deteriorate.
The extreme humidity decayed the wooden sculptures in the museum's collection in a matter of years.
Rust
To contract rust; to be or become oxidized.
If gold ruste, what shall iron do?
Our armors now may rust.
Decay
Of an array: to lose its type and dimensions and be reduced to a pointer, for example when passed to a function.
Rust
To be affected with the parasitic fungus called rust; also, to acquire a rusty appearance, as plants.
Decay
To pass gradually from a sound, prosperous, or perfect state, to one of imperfection, adversity, or dissolution; to waste away; to decline; to fail; to become weak, corrupt, or disintegrated; to rot; to perish; as, a tree decays; fortunes decay; hopes decay.
Ill fares the land, to hastening ills a prey,Where wealth accumulates and men decay.
Rust
To degenerate in idleness; to become dull or impaired by inaction.
Must I rust in Egypt? never moreAppear in arms, and be the chief of Greece?
Decay
To cause to decay; to impair.
Infirmity, that decays the wise.
Rust
To cause to contract rust; to corrode with rust; to affect with rust of any kind.
Keep up your bright swords, for the dew will rust them.
Decay
To destroy.
Rust
To impair by time and inactivity.
Decay
Gradual failure of health, strength, soundness, prosperity, or of any species of excellence or perfection; tendency toward dissolution or extinction; corruption; rottenness; decline; deterioration; as, the decay of the body; the decay of virtue; the decay of the Roman empire; a castle in decay.
Perhaps my God, though he be far before,May turn, and take me by the hand, and more -May strengthen my decays.
His [Johnson's] failure was not to be ascribed to intellectual decay.
Which has caused the decay of the consonants to follow somewhat different laws.
Rust
A red or brown oxide coating on iron or steel caused by the action of oxygen and moisture
Decay
Destruction; death.
Rust
A reddish-brown discoloration of leaves and stems caused by a rust fungus
Decay
Cause of decay.
He that plots to be the only figure among ciphers, is the decay of the whole age.
Rust
The formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
Decay
The process of gradually becoming inferior
Rust
Any of various fungi causing rust disease in plants
Decay
A gradual decrease; as of stored charge or current
Rust
Become destroyed by water, air, or an etching chemical such as an acid;
The metal corroded
The pipes rusted
Decay
The organic phenomenon of rotting
Rust
Cause to deteriorate due to the action of water, air, or an acid;
The acid corroded the metal
The steady dripping of water rusted the metal stopper in the sink
Decay
An inferior state resulting from the process of decaying;
The corpse was in an advanced state of decay
The house had fallen into a serious state of decay and disrepair
Rust
Become coated with oxide
Decay
The spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
Rust
Of the color of rust
Decay
Lose a stored charge, magnetic flux, or current;
The particles disintegrated during the nuclear fission process
Decay
Fall into decay or ruin;
The unoccupied house started to decay
Decay
Undergo decay or decomposition;
The body started to decay and needed to be cremated