mouth-breathe

• mouthbreathe

mouth-breathe (third-person singular simple present mouth-breathes, present participle mouth-breathing, simple past and past participle mouth-breathed)

1. To breathe through the mouth.
   • 1993, Hilary Johnson, Amanda Scott, A Practical Approach to Saliva Control, Communication Skill Builders, →ISBN, page 11:

     This problem may be increased if the individual mouth-breathes, which causes the secretions to dry and become thicker.

   • 1993 July, Energy Research Abstracts, volume 18, number 7, page 479:

     During the 10 minutes the test subjects were mouth-breathing to encourage deeper penetration of nitrous acid in the respiratory system so as to induce a mild cooling which would increase their responsiveness to irritants.

   • 2017, Ron Smith, The Humility of the Brutes, Louisiana State University Press, →ISBN, page 33:

     His advisors mouth-breathed at the side of His Obesity, who trembled with delight.

• mouth breather
• mouthbreathing