#mucus__mucu__mucous_secretion  protective secretion of the mucous membranes
  supertype:  secretion  a functionally specialized substance (especially one that is not a waste) released from a gland or cell
  substance:  mucin
  subtype:  sputum__phlegm  expectorated matter; saliva mixed with discharges from the respiratory passages; in ancient and medieval physiology it was believed to cause sluggishness
  subtype:  snot  nasal mucus
  subtype:  booger  dried nasal mucus
  subtype:  leukorrhea__leucorrhea  discharge of white mucous material from the vagina; often an indication of infection

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