Origin of tonusModern Latin ; from L: see tone
Origin of tonusLatin, tone; see tone.
(countable and uncountable, plural tonuses)
Part or all of this entry has been imported from the 1913 edition of Websterâ€™s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.