Definition of peroxide in English:

peroxide

noun

Chemistry
  • 1A compound containing two oxygen atoms bonded together in its molecule or as the anion O₂²⁻

    ‘the peptide neutralizes free radicals and peroxides, both of which can prevent cells from operating properly’
    ‘benzoyl peroxide’
    ‘sodium peroxide’
    • ‘The process uses organic peroxides that do not rely on any accelerators.’
    • ‘The increased accumulation of lipid peroxides is indicative of enhanced production of toxic oxygen species.’
    • ‘Similarly, concentrations of lipid peroxides, as indicators of lipid oxidation, were unchanged.’
    • ‘Similar to peroxides, decomposition of disulfides results in the formation of sulfur-centered radicals.’
    • ‘Functions include detoxification of free radicals and peroxides, regulation of cell growth and protein function, and maintenance of immune function.’
    1. 1.1mass noun Hydrogen peroxide, especially as used as a bleach for the hair.
      as modifier ‘a peroxide blonde’
      • ‘A tall, reedy blonde girl stood in front of her, chewing on a piece of her peroxide hair.’
      • ‘She dipped her hair in peroxide and fell asleep.’
      • ‘Make poultice soaked with 20% peroxide (hair bleaching strength) and a few drops of ammonia.’
      • ‘In over-the-counter treatments (like the strips you use), peroxide bleaches your pearly whites.’
      • ‘Remember peroxide is bleach so test an inconspicuous spot first for color fastness.’
      • ‘It turns out that all permanent dye must use PPD to adhere to the hair shaft and peroxide to open it.’
      • ‘Try here for ammonia and peroxide free hair dye.’
      • ‘‘I think it's important to be original,’ the 27-year-old with peroxide blonde hair said.’
      • ‘Jason washed his hair in the tub while Emily mixed a light solution of peroxide and water to bleach his hair.’
      • ‘Faith yelled, ‘I mean, yeah it looks nice, but really, who dies their hair with peroxide?’’
      • ‘She went to the bathroom to grab some peroxide water.’
      • ‘I never shaved my head, but I definitely mixed my own packets of peroxide, and put big fat streaks of blonde in my hair.’
      • ‘I followed my cousin's instructions and put a combination of peroxide, lemon juice and Sun-In through my black hair.’
      • ‘A woman steps out, quite tall with peroxide blonde hair, looks English.’
      • ‘Another time a girlfriend of mine introduced me to home perms, peroxide, and W - 2 solution.’
      • ‘I was brought up in West Bromwich, and spent my formative years dyeing my hair peroxide blonde and scowling a lot.’
      • ‘She had long peroxide colored hair and amazingly light hazel eyes.’
      • ‘He had a bright purple suit on and had dyed his hair peroxide blond.’
      • ‘Hair could be bleached with peroxide or dyed only black or brown.’
      • ‘Jessica got some peroxide, some toilet paper, and a band-aid for me.’

verb

[with object]
  • Bleach (hair) with peroxide.

    ‘she peroxided her wavy brown hair’
    ‘a face framed in peroxided curls’
    • ‘My agent filled them in that my hair had been peroxided and was very weak.’
    • ‘His delicately peroxided locks also contribute to his irresistible charms.’
    • ‘It took half an hour before a certain table of heavily peroxided girls understood what an essence was.’
    • ‘I am not convinced by her argument that peroxided hair came into vogue in the early 1920s, nor that the national fascination with blondes was strong in that decade.’
    • ‘He was immediately recognisable for his peroxided hair.’
    make pale, turn pale, whiten, make pallid, turn pallid, lighten, grey, wash out, fade, blench, etiolate, decolorize, bleach
    View synonyms

Origin

Early 19th century: from per- (sense 2)+ oxide.

Pronunciation

peroxide

/pəˈrɒksʌɪd/