Definition of ablative in English:



  • 1Grammar
    Denoting a case (especially in Latin) of nouns and pronouns and words in grammatical agreement with them indicating an agent, instrument, or source, expressed by ‘by’, ‘with’, or ‘from’ in English.

    • ‘And what on earth is ‘motu’ - ablative form of ‘motus’, but there is no fourth-declension ‘motus’ in Lewis and Short.’
    • ‘Indeed, the nominal part of this prepositional phrase is not in the nominative case; sub governs the ablative case.’
    • ‘Of the six Indo-European cases capable of being governed by adpositions, the ablative and genitive singular were not distinguished outside of o-stems.’
    • ‘My Mongolian had got as far as the ablative case and the important greeting noxhoi-khoi, ‘hold the dog’.’
    • ‘‘De minimis’ is a construction called the ablative plural, you don't use the ending ‘us’ after the preposition ‘de’.’
  • 2(of surgical treatment) involving ablation:

    ‘all nine patients were treated by ablative surgery’
    • ‘If patients have a less than 50 percent reduction in wart size, surgical excision or other ablative therapy should be initiated.’
    • ‘Treatment methods can be chemical or ablative.’
    • ‘It may be wise to biopsy all ‘warts’ before ablative treatment.’
    • ‘The ablative surgery included an anterior thigh flap by the plastic surgery service.’
    • ‘Atrophic scars, on the other hand, can be resurfaced with either ablative or nonablative lasers.’
    • ‘Disease limited to the liver is suitable for surgical resection or ablative techniques.’
    • ‘For ablative treatment procedures other than cryotherapy, local anesthesia with topical or injected lidocaine should be used.’
  • 3Relating to or subject to ablation through melting or evaporation:

    ‘the spacecraft's ablative heat shield’
    • ‘But that ablative armor of your's isn't going hold out under this punishment.’
    • ‘There are different types of phasers now, including ablative and shield penetrating.’
    • ‘The craft survived the journey with a rounded, blunt heat shield covered with ablative material, which evaporated away to dissipate heat.’
    • ‘George Thompson gritted his teeth as he reported ‘Dorsal ablative armor is dropping fast, inner shield systems aren't responding.’’
    • ‘This heat shield is covered by an insulating layer protected by an ablative material in contact with the hot plasma flow.’
    • ‘An ablative heat shield is made of a resinous composite material that slowly vaporizes during descent.’
    • ‘Protected by an ablative thermal shield, the probe will decelerate to 400 metres per second.’
    • ‘But many boaters today use ablative bottom paints that don't require stripping.’
    • ‘Why use a glass thermal protection system, rather than a low-tech ablative shield?’
    • ‘Second, it has some sort of ablative shielding and is making a very steep controlled entry.’
    • ‘Tests concluded that the average time the cannon needed to penetrate high-power ablative shielding and hull plating, was just under sixteen seconds.’
    • ‘In the center of the roof, stood three tubes which stuck into the building itself, made up of a flexible poly-alloy substance, lightly sheathed in a coat of transparent ablative armor.’
    • ‘To hell with temporal paradoxes, let's have that ablative armor and transphasic torpedo technology just a few years earlier.’
    • ‘Alright, get up here, and switch on the ablative hull armor.’


  • 1A word in the ablative case.

    • ‘Identify the types of ablatives in five Latin sentences, and then translate the ablative forms.’
    • ‘No, I think I mean loco, from the Latin ablative for locus, meaning place.’
    • ‘You may find yourself analyzing a long sentence with half a dozen unexplained ablatives left over at the end.’
    • ‘Thinking of ablatives as Latin's version of English adverbial clauses and phrases may help you.’
    • ‘I don't see why the word couldn't be used for hairless, though I'll admit it might be more usual to have an ablative of respect in there somewhere.’
    1. 1.1the ablative The ablative case.
      • ‘Just to clarify what the cases mean - dative means Bellesiles is the indirect object; and the ablative, among other things, it's used with the preposition ‘with’ (I wrote the book with Bellesiles).’
      • ‘The nominal system distinguishes five cases: nominative, genitive, dative, accusative, and ablative.’
      • ‘Classical Mongolian had seven cases: nominative, accusative, dative, genitive, ablative, instrumental, and comitative.’
      • ‘Mention one example each of verbs followed by the nominative, the accusative, the genitive, the dative, the ablative.’


Late Middle English: from Old French ablative (feminine of ablatif), Latin ablativus, from ablat- taken away (see ablation).