obstruent vs sonorant

obstruent

noun
  • A consonant sound formed by obstructing the airway, causing turbulence; a plosive, fricative, or affricate. 

  • Hypernym: consonant 

  • Anything that obstructs, especially in the passages of the body. 

adj
  • Causing obstruction; blocking up. 

sonorant

noun
  • A speech sound that is produced without turbulent airflow in the vocal tract; the generic term of vowel, approximant, nasal consonant, etc. 

How often have the words obstruent and sonorant occurred in a corpus of books? (source: Google Ngram Viewer )