helm

Definitions of helm
  1. noun
    a protective headgear made of hard material to resist blows
    see moresee less
    types:
    bromfietshelm, motorhelm, valhelm
    a padded helmet worn by people riding bicycles or motorcycles; protects the head in case of accidents
    bouwvakarbeider, bouwvakker, veiligheidshelm
    a lightweight protective helmet (plastic or metal) worn by construction workers
    hoofdijzer, oorijzer
    a protective helmet for the head
    type of:
    hoofddeksel, hoofdtooi, hoofdversiersel
    clothing for the head
  2. noun
    the inner membrane of embryos in higher vertebrates (especially when covering the head at birth)
    synonyms: hoofdvlies
    see moresee less
    type of:
    hoofdvlies
    any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus
  3. noun
    any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus
    synonyms: hoofdvlies
    see moresee less
    types:
    hoofdvlies
    the inner membrane of embryos in higher vertebrates (especially when covering the head at birth)
    navelstreng
    membranous duct connecting the fetus with the placenta
    type of:
    membraan, vlies
    a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
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Word Family

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