What's the difference between crust and rust?

Crust


Definition:

  • (n.) The hard external coat or covering of anything; the hard exterior surface or outer shell; an incrustation; as, a crust of snow.
  • (n.) The hard exterior or surface of bread, in distinction from the soft part or crumb; or a piece of bread grown dry or hard.
  • (n.) The cover or case of a pie, in distinction from the soft contents.
  • (n.) The dough, or mass of doughy paste, cooked with a potpie; -- also called dumpling.
  • (n.) The exterior portion of the earth, formerly universally supposed to inclose a molten interior.
  • (n.) The shell of crabs, lobsters, etc.
  • (n.) A hard mass, made up of dried secretions blood, or pus, occurring upon the surface of the body.
  • (n.) An incrustation on the interior of wine bottles, the result of the ripening of the wine; a deposit of tartar, etc. See Beeswing.
  • (n.) To cover with a crust; to cover or line with an incrustation; to incrust.
  • (v. i.) To gather or contract into a hard crust; to become incrusted.

Example Sentences:

  • (1) In certain cases the ulcerous crust is removed with chloramine.
  • (2) A rapid evolution of epithelialization was found in case of treated animals as distinguished from control sample, where the infected crust was far from being healed.
  • (3) Future ice loss and bending of the crust due to rising sea levels have the potential ultimately to raise levels of both earthquake and volcanic activity.
  • (4) A search for an intact blister is always warranted when erosions, oozing, or crusts are noted.
  • (5) In general, healthy panelists evaluated the cakes as sweeter, crust bitterness as greater, and overall eating quality as higher than the panel members with carbohydrate metabolic disorders.
  • (6) The tanks fell from 2,000ft on to the salt crust of the open desert and burst open as they struck the ground.
  • (7) A negative correlation between the number of mites and the presence and extensiveness of crusts was observed.
  • (8) The presence of subcorneal pustules in a solitary, indolent, crusted plaque, or in erythema annulare-like lesions with a trailing scale, is evidence of atypical psoriasis.
  • (9) Requirements for intranasal douching with saline have varied; however, we have had no problems with bothersome crusting following b.i.d.
  • (10) Disadvantages are a longer healing period and temporary crust formation as in conchotomy, the high technical effort and cost of the laser.
  • (11) Crusting was found around the lashes, and the lids developed loss of lashes and hair.
  • (12) Within three weeks after treatment was initiated, all animals were free of crusts.
  • (13) After the crust falls, carrying away some tattoo pigment on its deeper surface, a pale-pink scar forms, then gradually fades in several months.
  • (14) We report a case of nonvesicular hydroa vacciniforme in which only extensive crusting associated with hypertrophic scarring on sun-exposed skin was present.
  • (15) The absorption of mercury was investigated after three phase crusting by Grob on a second-degree scald burn of 10 to 15% of the body surface in rats.
  • (16) For oxalate stones a separation of the outer layer (crust) from the inner layer (core) marked the point of maximum load.
  • (17) The vesicles progress to pustules, then to crusts that eventually are lost.
  • (18) A case of localized CrS appearing as a yellowish and crusted plaque on the second right toe is reported in a woman with AIDS.
  • (19) All the patients were elderly women who developed chronic, extensive, pustular, crusted and occasionally eroded lesions of the scalp which produced scarring alopecia.
  • (20) For all their apparent beauty and fragility, just think of coral reefs as big lumps of rock with a living crust.

Rust


Definition:

  • (v. i.) To contract rust; to be or become oxidized.
  • (n.) 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.
  • (n.) 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.
  • (n.) That which resembles rust in appearance or effects.
  • (n.) A composition used in making a rust joint. See Rust joint, below.
  • (n.) Foul matter arising from degeneration; as, rust on salted meat.
  • (n.) Corrosive or injurious accretion or influence.
  • (v. i.) To be affected with the parasitic fungus called rust; also, to acquire a rusty appearance, as plants.
  • (v. i.) To degenerate in idleness; to become dull or impaired by inaction.
  • (v. t.) To cause to contract rust; to corrode with rust; to affect with rust of any kind.
  • (v. t.) To impair by time and inactivity.

Example Sentences:

  • (1) The reasoning in Rust v Sullivan allows government to limit freedom of speech in federally funded programs.
  • (2) Here, abandoned cars don’t just sit and rust, they are swallowed by the jungle.
  • (3) The cause, they claimed, was emissions from the mine's sulphuric acid factory as well as outflow from mountains of rust-red waste, dumped over 15 years with little concern for the environment.
  • (4) The bean rust fungus, Uromyces appendiculatus, undergoes thigmotropic differentiation to produce infection structures.
  • (5) Pain relief is more rapid after electric drill removal; this is probably related to the complete removal of the rust.
  • (6) And no wonder: unemployment in the Garden State is at a 35-year high of 9.8% – the fourth-worst in the nation – and unlike in the Rust Belt states or other hard-hit regions, in Jersey unemployment is still climbing .
  • (7) Hill, who cut an unusual touchline figure in green jacket and rust cords, preferred to praise Wednesday for the quality of their set plays rather than blast his defenders for their inability to defend them.
  • (8) Worse, pests like the berry borer beetle and leaf rust fungus are flourishing as the world warms.
  • (9) The rusted bike was found in a large white container where its owner, Ikuo Yokoyama, had kept it.
  • (10) Mr X invested money into buying old equipment from other abandoned coal mines – this was not difficult because abandoned mines with rusting equipment are not in short supply in North Korea today.
  • (11) This week a beachcomber in British Columbia found a moving crate containing a rusting Harley-Davidson motorcycle registered to Japan's Miyagi prefecture, which absorbed the brunt of the tsunami.
  • (12) One white lump sits beside the rusted-out remains of a bucket.
  • (13) In the glow of the thing's own flame they saw edificial flanks, the concrete and rust of them, the iron of the pylon barnacled, shaggy with benthic growth now lank gelatinous bunting.
  • (14) The Trump vote contained rednecks and inhabitants of the rust belt, just as south Wales and Sunderland turned out for Brexit – but in neither case was that the whole story.
  • (15) The best actress award Last year Marion Cotillard's turn in Jacques Audiard's Rust & Bone , as a waterpark trainer who loses her legs, was beaten to the best actress award by two troubled nuns in Romanian drama Beyond the Hills.
  • (16) Basidiomycetes, a complex and common group of fungi, which include mushrooms, rusts, smuts, brackets, and puffballs, have not been well studied.
  • (17) Naturally, insider accounts suggest electoral calculation : Trump reckoned that the people who put him in the White House, especially blue collar workers in the rust-belt states, have long seen global warming as a con.
  • (18) We cannot let that happen.” “He says he has foreign policy experience because he ran the Miss Universe pageant in Russia,” she said, adding at another point in the speech: “This isn’t reality television, this is actual reality.” Later, Clinton added: “It is not hard to see how a Trump presidency could lead to a global economic crisis.” The former secretary of state’s speech, staged in front of a wall of US flags, rebutted a foreign policy address Trump made in April in which he promised to save “humanity itself” and “shake the rust off America’s foreign policy”.
  • (19) Where other politicians might be accused of dog-whistle politics, Trump was broadcasting at a frequency accessible to all, exploiting the nation’s three biggest weaknesses: rust, race and ignorance.
  • (20) Steel surfaces can be treated with zinc and chromates to prevent the steel from rusting.

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