lumbar vertebra

Noun
  1. One of 5 vertebrae in the human vertebral column;
    Lumbar vertebrae extend from the twelfth thoracic vertebra down to the sacral vertebrae (synset 105597028)
    is a type of: vertebra - one of the bony segments of the spinal column
    is a part of: back, dorsum - the posterior part of a human (or animal) body from the neck to the end of the spine

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