Definition of anneal in English:

anneal

verb

[WITH OBJECT]
  • 1Heat (metal or glass) and allow it to cool slowly, in order to remove internal stresses and toughen it.

    • ‘The template and primer were annealed by briefly heating at 80°C and cooling to room temperature.’
    • ‘Mattinson's idea was to first heat or anneal the zircons, sealing off the least damaged areas of the crystal, then using a strong reagent, hydrofluoric acid, to eat away the heavily damaged areas.’
    • ‘Beta annealing is done at temperatures above the transus of the alloy being annealed.’
    • ‘Unlike annealed stampings, fully hardened electroforms need no heat treating - a process that can distort finished shapes.’
    • ‘The heat of welding will anneal the copper in the heat-affected area adjacent to the weld and reduce the strength provided by cold working.’
    • ‘Ferritic and pearlitic malleable irons are both produced by annealing white iron of controlled composition.’
    • ‘After being annealed, the work metal is quenched in water to free it from particles of the salt mixture.’
    • ‘After extrusion, the tubes are annealed to remove the work hardening and provide the softness or limpness needed for good collapsibility.’
    • ‘In heat treatable alloys, annealing also may be accompanied by precipitation and changes in solute concentration.’
    • ‘Following welding the weldment should be annealed and then heat treated to the desired strength level.’
    • ‘The white irons of suitable composition can be annealed to give malleable cast iron.’
    • ‘The modern range of machinery includes five-axis HSC centres and stretch forming machines, annealing furnaces and chemical milling plants.’
    • ‘The cold rolling process required that the steel be annealed or softened to keep the metal flexible and not brittle.’
    • ‘He says bright annealed stainless steel is generally specified for medical applications.’
    • ‘Welding of cold-worked alloys anneals the heat-affected zone and eliminates the strength produced by cold working.’
    • ‘The weldment must be stress relived or annealed after welding.’
    • ‘The most common heat treatments of gray iron are annealing and stress relieving.’
    • ‘If machining is required the weld deposits should be annealed and heat treated after machining.’
    • ‘For the high-silicon nodular irons, high-temperature heat treatment is advised in all cases to anneal any pearlite and stabilize the casting against growth in service.’
    • ‘The ‘EZ Beader’ from PARAGON is a new bead kiln designed to anneal glass beads to prevent breakage during cooling.’
    solidify, set, become hard, become solid, congeal, clot, coagulate, stiffen, thicken, cake, freeze, bake, crystallize
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    1. 1.1Biochemistry Recombine (DNA) in the double-stranded form following separation by heat.
      • ‘A stock solution of double stranded DNA was prepared by annealing the two single strands in 100 mM. pH 7.2 sodium phosphate buffer at a DNA concentration of 14 M (in helices).’
      • ‘Two single-stranded oligos, GAGAEXHO and GAGAESAL, were annealed to generate a double-stranded oligo with XhoI and SalI cohesive ends.’
      • ‘DNAs were P-labeled in vitro by random priming and were annealed to electrophoretically fractionated DNA preparations that had been alkali transferred to Hybond N + nylon filters.’
      • ‘These primers were annealed to total RNA from annular cartilage and kidney and extended in the 5’ direction with reverse transcriptase.’
      • ‘The oligonucleotides were annealed by heating the solution of self-complementary oligonucleotides to 94°C using a heat block, and then cooling it to 30°C over the course of 2 h. Annealed DNA was stored at - 80°C until use.’
      • ‘Consistent with the results of SUGIYAMA et al. 1998, 100% of the DNA was annealed by 2 min when 20 nM Rad 52 was included in the reaction.’
      • ‘The one strand of RNA is annealed with its complementary strand of DNA, which causes the other strand of DNA to be displaced from the helix.’
      • ‘The following oligonucleotide pairs were annealed to form double-stranded DNA and coinjected into worms along with the DNA components of the lacI / lacO system.’
      • ‘A mutagenic oligo containing one of the mutations was annealed to a genome carrying the second mutation, and the oligo was extended using T4 DNA polymerase, essentially as in Sambrook, Fritsch, and Maniatis.’
      • ‘Equal amounts of each RNA were mixed, denatured, and annealed by slow cooling.’
      • ‘A primer is annealed upstream of the divergent site and extended one base at a time, with the number of nucleotides incorporated at each position proportional to the number of transcripts in the sample.’
      • ‘Sense and antisense RNAs were annealed to create double-stranded RNA by heating to 93°C for 30 s, followed by twenty-five 30-s incubations at 2° decrements for each incubation.’

Origin

Old English onǣlan, from on + ǣlan ‘burn, bake’ from āl ‘fire, burning’. The original sense was ‘set on fire’, hence (in late Middle English)‘subject to fire, alter by heating’.

Pronunciation

anneal

/əˈnil//əˈnēl/