basal

/ˈbeɪsəl/
noun
  1. A basic or fundamental part or element.
    • The basals of the theory are easy to understand.
    • The course covers the basals of grammar and sentence structure.
    • She learned the basals of cooking before trying complex recipes.
adjective
  1. Relating to or forming the base or foundation of something; basic or fundamental.
    • Understanding addition is a basal skill for learning more advanced math.
    • The company's basal principles include honesty and customer service.
    • The basal layer of the skin is where new cells are produced.
  2. In medicine, referring to the minimum level of a bodily function or substance when the body is at rest.
    • A basal metabolic rate test helps determine how many calories you burn at rest.
    • His basal insulin level was too low, so he needed treatment.
    • The doctor measured her basal heart rate while she was lying down.
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