English Words Starting With A

• auxin

  nounC2
  /ˈɔːksɪn/A plant hormone that regulates growth, particularly cell elongation.
• auxo

  nounVery Low
  /ˈɔːksəʊ/In Greek mythology, one of the Horae (goddesses of the seasons), specifically associated with growth and spring.
• auxocardia

  nounVery Low (Technical Term)
  /ˌɔːksə(ʊ)ˈkɑːdɪə/Dilation or enlargement of the heart.
• auxochrome

  nounVery Low
  /ˈɔːksəkrəʊm/A group of atoms in a dye molecule that intensifies its colour by altering the molecule's electron distribution.
• auxocyte

  nounExtremely Low / Technical
  /ˈɔːksə(ʊ)ˌsʌɪt/A general term for a cell undergoing meiosis (such as a spermatocyte, oocyte, or spore mother cell).
• auxospore

  nounVery Low
  /ˈɔːksəʊspɔː/A reproductive cell in certain algae, especially diatoms, that initiates a new, larger generation after a period of size reduction.
• auxotroph

  nounVery Low
  /ˈɔːksə(ʊ)trəʊf/A microorganism that requires specific organic growth factors (e.g., vitamins, amino acids) to survive, which it cannot synthesize itself.
• av

  abbreviationnounLow (Technical/Professional)
  /ˌeɪ ˈviː/The abbreviation for "audio-visual," referring to technology, equipment, or materials that involve both sound and visual elements.
• avadavat

  nounRare
  /ˈævədəˌvæt/A small, brightly colored finch native to South and Southeast Asia, often kept as a cage bird.
• avail

  nounverbverb-intransitiveverb-transitiveC1
  /əˈveɪl/To be of use, value, or advantage.
• availability

  nounC1
  /əˌveɪləˈbɪləti/The state of being able to be used, obtained, or accessed; the fact of being free to do something.
• available light

  nounC1
  /əˈveɪləbəl laɪt/The existing, ambient illumination in a scene or setting, not supplemented by artificial sources like flashes or studio lights.
• avalanche

  nounverbverb-intransitiveverb-transitiveB2
  /ˈæv.ə.lɑːnʃ/A very large mass of snow, ice, rock, or other material that falls down the side of a mountain very quickly.
• avalanche lily

  nounC2
  /ˈæv.ə.lɑːnʃ ˌlɪl.i/A small, perennial, flowering plant of the genus Erythronium, typically found in mountainous regions of North America, often blooming in late spring as snow melts.
• avalanche wind

  nounLow
  /ˈæv.əl.ɑːnʧ wɪnd/The powerful blast of air and snow dust that is pushed ahead of a descending avalanche.
• avalokitesvara

  nounLow (Technical/Religious)
  /ˌʌvəˌləʊkɪˈteɪʃvərə/In Mahāyāna Buddhism, a bodhisattva who embodies the compassion of all Buddhas. He is one of the most widely revered and depicted celestial beings, often described as 'the lord who looks down with compassion'.
• avalon

  nounLow
  /ˈæv.ə.lɒn/In Arthurian legend, a mythical island or paradise, often the place where King Arthur is taken to recover from his wounds after his final battle.
• avalon peninsula

  nounLow (Geographical proper noun)
  /ˈæv.ə.lɒn pəˈnɪn.sjə.lə/A large peninsula forming the southeastern part of the island of Newfoundland, Canada, containing the provincial capital, St. John's.
• avant-garde

  adjectivenounC1
  /ˌævɒ̃ ˈɡɑːd/New and experimental ideas or methods, especially in the arts, that challenge traditional forms.
• avant-gardism

  nounC2
  /ˌævɒ̃ ˈɡɑːdɪz(ə)m/The principles, practices, or style of the avant-garde; the quality of being avant-garde.

Showing 8421–8440 of 8734 words.