hydroxylic acid vs μ-oxido dihydrogen

hydroxylic acid

noun

  • One of several systematic acid names for water, H₂O. 

μ-oxido dihydrogen

noun

  • An alternative systematic name for water, H₂O. 

How often have the words hydroxylic acid and μ-oxido dihydrogen occurred in a corpus of books? (source: Google Ngram Viewer )