relating to nitrogen which has a lower valence than nitrous compounds
hyponitrous in American English
(ˌhaipəˈnaitrəs)
adjective
of or derived from hyponitrous acid
Word origin
[1820–30; hypo- + nitrous]This word is first recorded in the period 1820–30. Other words that entered Englishat around the same time include: blouse, karma, morphology, myth, tetrapodhypo- is a prefix appearing in loanwords from Greek, where it meant “under” (hypostasis). On this model, hypo- isused, especially as opposed to hyper-, in the formation of compound words (hypothyroid). Other words that use the affix hypo- include: hypocaust, hypochondria, hypocrisy, hypostatic, hypotonic