English Words Starting With I

• immunosorbent

  nounC2
  /ˌɪm.jə.nəʊˈsɔː.bənt/relating to or being a substrate (such as a surface or bead) that has an antibody or antigen attached, used to selectively capture and isolate specific proteins or other molecules from a mixture.
• immunosuppress

  verb-ambitransitiveC2
  /ˌɪmjuːnəʊsəˈpres/To inhibit or reduce the body's natural immune response.
• immunosuppression

  nounC2
  /ˌɪm.jʊ.nəʊ.səˈpreʃ.ən/The reduction or suppression of the immune system's effectiveness.
• immunosuppressive

  adjectivenounC1
  /ˌɪm.jə.nəʊ.səˈpres.ɪv/(Of a drug or agent) reducing or preventing the body's immune response.
• immunotherapy

  nounC1
  /ˌɪm.jə.nəʊˈθer.ə.pi/The treatment of disease, especially cancer, by activating or suppressing the body's own immune system.
• immunotoxin

  nounVery Low
  /ˌɪmjʊnəʊˈtɒksɪn/A toxin (poisonous substance) conjugated to an antibody, designed to target and kill specific cells, particularly cancer cells.
• immure

  verbverb-transitiveC2 / Very Low
  /ɪˈmjʊə(r)/To enclose or confine someone within walls; to imprison.
• immutability

  nounC1
  /ɪˌmjuːtəˈbɪlɪti/The quality or state of being unchangeable or unable to be altered.
• imogene

  nounRare
  /ˈɪm.ə.dʒiːn/A female given name of English origin.
• impact

  nounverbverb-intransitiveverb-transitiveC1
  /ˈɪmpækt/The strong effect or influence that something has on a situation, person, or thing.
• impact adhesive

  nounC1
  /ˈɪmpækt ədˌhiːsɪv/A type of glue that forms an instant, strong bond when two coated surfaces are pressed together with force.
• impact extrusion

  nounVery Low Frequency (highly specialized technical term)
  /ˈɪmpækt ɪkˈstruːʒ(ə)n/A specialized metalworking process where a slug of metal is formed into a hollow shape by a single, high-speed blow from a punch, forcing it through a die.
• impact parameter

  nounC2/Technical
  /ˈɪmpækt pəˌræm.ɪ.tə/In scattering experiments, the perpendicular distance between the initial trajectory of an incoming particle and the centre of the target particle it is approaching.
• impact printer

  nounC1
  /ˈɪmpækt ˌprɪntə/A type of computer printer that works by physically striking an inked ribbon against the paper, such as a dot-matrix or daisy-wheel printer.
• impact structure

  nounLow frequency
  /ˈɪmpækt ˈstrʌk.tʃər/A construction or framework designed to absorb and manage forceful contact or collision.
• impact wrench

  nounLow
  /ˈɪmpækt rɛntʃ/A power tool used primarily in mechanical work that delivers a high-torque, sudden rotational force (an 'impact') to tighten or loosen fasteners like nuts and bolts.
• impact zone

  nounLow-medium
  /ˈɪmpækt ˌzəʊn/The specific area where a significant force or object makes contact with a surface or target, or where the main effects of an event are concentrated.
• impacter

  nounLow
  /ɪmˈpæk.tə(r)/A person or thing that has a significant effect, influence, or impact.
• impaction

  nounLow
  /ɪmˈpakʃ(ə)n/The state of being tightly wedged or lodged in a confined space, causing a blockage.
• impactite

  nounRare/Very Low
  /ˈɪmpæktaɪt/A type of glassy rock formed by the heat and pressure of a meteorite impact.

Showing 681–700 of 3621 words.