Dithionic :: Dithionic (a.) Containing two equivalents of sulphur; as, dithionic acid..

Ethionic :: Ethionic (a.) Pertaining to, derived from, or designating, an acid so called..

Isethionic :: Isethionic (a.) Pertaining to, derived from, or designating, an acid, HO.C2H4.SO3H, obtained as an oily or crystalline substance, by the action of sulphur trioxide on alcohol or ether. It is derivative of sulphuric acid..

Methionate :: Methionate (n.) A salt of methionic acid.

Methionic :: Methionic (a.) Of, pertaining to, or designating, a sulphonic (thionic) acid derivative of methane, obtained as a stable white crystalline substance, CH2.(SO3H)2, which forms well defined salts..

Oenothionic :: Oenothionic (a.) Pertaining to an acid now called sulphovinic, / ethyl sulphuric, acid..

Opisthion :: Opisthion (n.) The middle of the posterior, or dorsal, margin of the great foramen of the skull..

Pentathionic :: Pentathionic (a.) Pertaining to, or designating, an acid of sulphur obtained by leading hydrogen sulphide into a solution of sulphur dioxide; -- so called because it contains five atoms of sulphur..

Struthiones :: Struthian (a.) Struthious.

Struthiones :: Struthioidea (n. pl.) Same as Struthiones.

Struthiones :: Struthiones (n. pl.) A division, or order, of birds, including only the African ostriches..

Struthionine :: Struthiones (n. pl.) In a wider sense, an extensive group of birds including the ostriches, cassowaries, emus, moas, and allied birds incapable of flight. In this sense it is equivalent to Ratitae, or Dromaeognathae..

Tetrathionate :: Tetrathionate (n.) A salt of tetrathionic acid.

Tetrathionic :: Tetrathionic (a.) Of, pertaining to, or designating, a thionic derivative, H/S/O/, of sulphuric acid, obtained as a colorless, odorless liquid..

Thionaphthene :: Thionaphthene (n.) A double benzene and thiophene nucleus, C8H6S, analogous to naphthalene, and like it the base of a large series of derivatives..

Thionic :: Thionic (a.) Of or pertaining to sulphur; containing or resembling sulphur; specifically, designating certain of the thio compounds; as, the thionic acids. Cf. Dithionic, Trithionic, Tetrathionic, etc..

Thionine :: Thionine (n.) An artificial red or violet dyestuff consisting of a complex sulphur derivative of certain aromatic diamines, and obtained as a dark crystalline powder; -- called also phenylene violet..

Thionol :: Thionol (n.) A red or violet dyestuff having a greenish metallic luster. It is produced artificially, by the chemical dehydration of thionine, as a brown amorphous powder..

Thionoline :: Thionoline (n.) A beautiful fluorescent crystalline substance, intermediate in composition between thionol and thionine..

Thionyl :: Thionyl (n.) The hypothetical radical SO, regarded as an essential constituent of certain sulphurous compounds; as, thionyl chloride..

Trithionate :: Trithionate (n.) A salt of trithionic acid.

Trithionic :: Trithionic (a.) Of or pertaining to, or designating, a certain thionic acid, H2S3O6 which is obtained as a colorless, odorless liquid..

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