Definition of invasive in US English:

invasive

adjective

  • 1(especially of plants or a disease) tending to spread prolifically and undesirably or harmfully.

    • ‘This finding underscores the need for careful follow-up for the development of muscle invasive cancer.’
    • ‘Amphotericin B is the cornerstone for treatment of invasive fungal infections, especially in neutropenic patients’
    • ‘Intraductal proliferative lesions are associated with increased invasive cancer risk.’
    • ‘After habitat destruction, the spread of alien invasive species in our countryside is one of the most pervasive threats to our native plants.’
    • ‘‘Polyp cancers’ are defined as invasive cancers removed at colonoscopy when colectomy was not carried out’
    • ‘Sixty percent of women who are diagnosed with invasive cervical cancer have not had a Pap smear in the past five years.’
    • ‘Battling invasive aquatics Texas has problems with harmful invasive aquatic plants.’
    • ‘They can be very invasive, spreading with suckers and by stems rooting where they touch the soil but hard annual pruning will keep growth in check.’
    • ‘No cases of invasive cervical cancer occurred in women who had at least three previously normal Pap tests.’
    • ‘Why do nerve cell bundles ‘camp’ near the invasive front of colon cancer tumors?’
    • ‘These lesions can progress to carcinoma in situ and then to invasive cancer.’
    • ‘But since the plant's seeds are sterile, the grass does not spread like an invasive species.’
    • ‘However, significant differences have been observed between endometrial cancer and invasive ovarian cancer.’
    • ‘There was invasive cancer in the cyst wall and the adjacent solid areas.’
    • ‘Not a single case of invasive cervical cancer was missed with the use of HPV DNA testing in conjunction with cytology.’
    • ‘It is also used by people interested in research and conservation, or those simply interested in the spread of invasive aquatic animals.’
    • ‘If abnormal cells are found early on, pre-cancerous changes can be treated before they become invasive cancer of the vulva.’
    • ‘If you get regular Pap tests, your chances of developing invasive cervical cancer are very low.’
    • ‘These superficial lesions can also be treated bronchoscopically to prevent progression to invasive cancer.’
    • ‘Only intensive cutting and repeated herbicide treatment can halt the invasive shrub's spread.’
    virulent, infectious, uncontrollable, dangerous, harmful, pernicious
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    1. 1.1 (especially of an action or sensation) tending to intrude on a person's thoughts or privacy.
      ‘the sound of the piano was invasive’
      • ‘Undertaking such searches is highly invasive of an applicant's privacy and potentially very damaging.’
      • ‘All these government programs are invasive of privacy, paternalistic, demeaning, and inefficient.’
      • ‘I mentioned this bill, and that person came up with a story about being the subject of unwanted and invasive photography.’
      • ‘And with the average person reading up to 60 e-mails a day, this junk can easily become both intrusive and invasive.’
      • ‘To those with strong networks of family and friends, such measures may seem paranoid or unduly invasive of privacy.’
      • ‘The collection of a specimen is a humiliating, invasive violation of privacy.’
      • ‘If a statement might be defamatory or invasive of privacy or infringing on the publicity of a live person, I don't think that statement should be used regarding a dead celebrity.’
      • ‘Noise becomes something seen, something literally invasive of privacy.’
      • ‘Eavesdropping is difficult, time-consuming and invasive of privacy.’
      • ‘Data retention is an invasive tool that interferes with the private lives of all 450 million people in the European Union.’
      • ‘So it's a little bit invasive right now, and we have no privacy.’
      • ‘Historically, a privacy invasion would have seemed greatest when a physically invasive observation took place.’
      intruding, obtrusive, interrupting, trespassing, unwanted, unwelcome
      View synonyms
    2. 1.2 (of medical procedures) involving the introduction of instruments or other objects into the body or body cavities.
      ‘minimally invasive surgery’
      • ‘Percutaneous cholecystostomy is a minimally invasive procedure that can benefit patients with serious comorbidity who are at high risk from major surgery.’
      • ‘The local research ethics committee's permission must be sought before a clinician undertakes a new invasive procedure’
      • ‘Most attempts to move complex and invasive procedures out of hospital completely and into patients' homes remain marginal.’
      • ‘Invasive procedures such as needle biopsies are guided by ultrasound images.’
      • ‘Patients maintained on warfarin may occasionally need to stop anticoagulant therapy during invasive procedures.’
      • ‘The definitive diagnosis thus requires an invasive procedure with biopsy.’
      • ‘For major invasive procedures or surgery, it may be reconsidered 12 hours after the procedure.’
      • ‘Coagulopathy should be corrected when there is overt bleeding or an invasive procedure is planned.’
      • ‘Colonoscopy is an indispensable part of modern medical practice and one of the most commonly used invasive medical procedures.’
      • ‘For patients with grade III fixed posterior subluxation, more invasive procedures should be considered.’
      • ‘Some of these women regret entering a conveyor belt process that ends up with an invasive procedure that causes a high rate of fetal loss.’
      • ‘The new policy had the potential to touch many areas in the hospital because invasive procedures are performed in a variety of settings.’
      • ‘Neonatologists agree on the importance of pain relief for newborn babies undergoing invasive procedures, such as placement of a chest drain.’
      • ‘The importance of asepsis and sterilization of instruments and supplies for invasive procedures became widely accepted.’
      • ‘Central venous catheterization is one of the most commonly used invasive procedures in critically ill patients.’
      • ‘It also may be used in other ambulatory settings that perform surgery or other invasive procedures.’
      • ‘Junior nurses and healthcare assistants more involved in physical care seemed able to recognise that there was more to care than drugs, surgery, and invasive procedures.’
      • ‘But minimally invasive procedures, using instruments controlled by humans, have their limitations.’
      • ‘At the same time, the likelihood of harm from false-positive results and invasive procedures and treatment is substantial.’
      • ‘Infants born after very short gestations and require intensive care and undergo invasive procedures are most at risk.’

Origin

Late Middle English: from obsolete French invasif, -ive or medieval Latin invasivus, from Latin invadere (see invade).

Pronunciation

invasive

/inˈvāsiv//ɪnˈveɪsɪv/