English Words Starting With A

• addison's disease

  nounC2
  /ˈædɪsənz dɪˌziːz/A rare chronic condition where the adrenal glands fail to produce enough steroid hormones, particularly cortisol.
• addisonian

  adjectivenounVery Low
  /ˌadɪˈsəʊnɪən/Relating to or characteristic of Joseph Addison (1672–1719), the English essayist, poet, and politician, or his works.
• additament

  nounObscure / Archaic / C2
  /əˈdɪtəmənt/An addition or supplement; something added.
• addition

  nounB1
  /əˈdɪʃ(ə)n/The process of adding something to something else; the act or process of joining two or more numbers or quantities together to find their total.
• addition polymer

  nounC1+ (Specialist)
  /əˌdɪʃ.ən ˈpɒl.ɪ.mər/A polymer formed by the chain addition of unsaturated monomer molecules (like ethylene) without the loss of any small molecules (like water).
• addition reaction

  nounLow (C2/Technical)
  /əˈdɪʃ(ə)n riˈækʃ(ə)n/A chemical reaction in which two or more molecules combine to form a larger single molecule, with no by-products.
• additional member system

  nounC2
  /əˌdɪʃ.ən.əl ˈmem.bə ˌsɪs.təm/A mixed electoral system where voters cast two votes: one for a constituency representative and one for a party list, with list seats allocated to correct overall proportionality.
• additionality

  nounC2
  /əˌdɪʃ.ənˈæl.ə.ti/The principle that a project or funding must result in an outcome that would not have occurred without it; the quality of being additional.
• additive

  adjectivenounC1
  /ˈæd.ɪ.tɪv/Something added to another thing, typically in small amounts, to improve, preserve, or alter it.
• additive color

  nounC2
  /ˈæd.ɪ.tɪv ˈkʌl.ər/A color created by mixing different wavelengths of light, where combining all primary colors (red, green, blue) produces white light.
• additive group

  nounC2 / Highly Technical
  /ˈæd.ɪ.tɪv ɡruːp/In mathematics, an algebraic structure where the operation is addition, fulfilling specific axioms like associativity, having an identity element (0), and every element having an inverse.
• additive identity

  nounC2
  /ˌæd.ɪ.tɪv aɪˈden.tɪ.ti/The number zero (0), which, when added to any number, leaves that number unchanged.
• additive inverse

  nounLow
  /ˈæd.ɪ.tɪv ˈɪn.vɜːs/A number which, when added to a given number, yields a sum of zero.
• additive process

  nounC1
  /ˈæd.ɪ.tɪv ˈprəʊ.ses/A manufacturing or creative method where material is added layer by layer to build up a final form, as opposed to subtractive methods where material is removed.
• addle

  adjectiveverbverb-ambitransitiveC1
  /ˈad(ə)l/To make or become confused, muddled, or unable to think clearly.
• addled

  adjectiveverbC1/C2
  /ˈædld/Confused, muddled, or unclear in mind; (of an egg) rotten or infertile.
• address

  nounverbverb-intransitiveverb-transitiveHigh
  /əˈdres/The details of where someone lives or an organization is located; to speak or write to someone directly; to deal with or discuss a problem, question, or situation.
• address bar

  nounB1
  /əˈdrɛs bɑː/A text box in a web browser's interface where you type or paste the URL (web address) of a page you want to visit.
• addressee

  nounB2
  /ˌæd.resˈiː/The person or organization to whom a letter, package, or other communication is formally addressed and sent.
• addressing machine

  nounC1/C2 (Very Low Frequency, Domain-Specific)
  /əˈdresɪŋ məˈʃiːn/A machine for printing addresses directly onto mail items or labels.

Showing 1221–1240 of 8734 words.