Vocabulary Words - High School - A:

• abolition
  (n.) The stopping of something by law.
  
  
• abstract
  (adj.) Related to ideas instead of real people, places, or objects.
  (n.) A summary of a long piece of writing.
  
  
• accede
  (v.) To agree.
  
  
• acetylcholine
  (n.) A chemical that a neuron uses to send a message to another cell.
  
  
• actin
  (n.) One of the protein components of muscle.
  
  
• adhere
  (v.) To stick to.
  
  
• administration
  (n.) Managing and organizing the work of a company.
  
  
• alicorn
  (n.) The horn on a unicorn's head..
  
  
• alveolus
  (n.) An individual sac in the lungs that helps move oxygen into the blood stream.
  
  
• ambassador
  (n.) An official who represents his or her country in a foreign country.
  
  
• animated
  (v.) Past tense of animate; to draw something so that it has movement.
  (adj.) A film that shows pictures that seem to be moving.
  
  
• anode
  (n.) A device that carries an electrical charge into something.
  
  
• anorexia
  (n.) Loss of appetite and no interest or ability to eat.
  
  
• antelabbit
  (n.) An imaginary animal that is a combination of a rabbit and an antelope.
  
  
• anterior
  (adj.) In front of or on the front surface of the body.
  
  
• anticlimatic
  (adj.) Relating to a result that is disappointing.
  
  
• aorta
  (n.) The largest artery in the body.
  
  
• arbitrary
  (adj.) Without listening to reason or others' opinions.
  
  
• arboreal
  (adj.) Related to trees.
  
  
• arteriole
  (n.) Vessels that tighten or relax to control the blood supply through the body.
  
  
• articulation
  (n.) The name of the place where two or more bones come together.
  
  
• aspire
  (v.) To hope to do or be something.
  
  
• assertive
  (adj.) Confident.
  
  
• assessment
  (n.) A test that tells about students' abilities in a subject.
  
  
• asset
  (n.) Something with value.