erectile

Adjective
  1. Capable of being raised to an upright position (synset 301239316)
    "erectile feathers"
    similar to: erect, upright, vertical - upright in position or posture
  2. Filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood (synset 300950219)
    "erectile tissue"; "the penis is an erectile organ"
    referred to in: physiology - the branch of the biological sciences dealing with the functioning of organisms
    similar to: expansive - able or tending to expand or characterized by expansion
    same as: cavernous

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