HYPONITRITE
Hy`po*ni"trite, n. (Chem.)
Defn: A salt of hyponitrous acid.
HYPONITROUS
Hy`po*ni"trous, a. Etym: [Pref. hypo- + nitrous.] (Chem.)
Defn: Containing or derived from nitrogen having a lower valence than in nitrous compounds. Hyponitrous acid (Chem.), an unstable nitrogen acid, NOH, whose salts are produced by reduction of the nitrates, although the acid itself is not isolated in the free state except as a solution in water; — called also nitrosylic acid.
HYPOPHARYNX
Hy`po*phar"ynx, n. Etym: [NL. See Hypo-, and Pharynx.] (Zoöl.)
Defn: An appendage or fold on the lower side of the pharynx, in certain insects.
HYPOPHOSPHATE
Hy`po*phos"phate, n. (Chem.)
Defn: A salt of hypophosphoric acid.
HYPOPHOSPHITE
Hy`po*phos"phite, n. (Chem.)
Defn: A salt of hypophosphorous acid.