Ter"ti*a*ry (?), a. [L. tertiarius
containing a third part, fr. tertius third: cf. F. tertiaire.
See Tierce.] 1. Being of the third formation,
order, or rank; third; as, a tertiary use of a word.
Trench.
2. (Chem.) Possessing some quality in the
third degree; having been subjected to the substitution of three atoms or
radicals; as, a tertiary alcohol, amine, or salt. Cf.
Primary, and Secondary.
3. (Geol.) Later than, or subsequent to, the
Secondary.
4. (Zoöl.) Growing on the innermost
joint of a bird's wing; tertial; -- said of quills.
Tertiary age. (Geol.) See under Age,
8. -- Tertiary color, a color produced by the
mixture of two secondaries. "The so-called tertiary colors are
citrine, russet, and olive." Fairholt. --
Tertiary period. (Geol.) (a)
The first period of the age of mammals, or of the Cenozoic era.
(b) The rock formation of that period; -- called also
Tertiary formation. See the Chart of Geology. --
Tertiary syphilis (Med.), the third and last
stage of syphilis, in which it invades the bones and internal
organs.
Ter"ti*a*ry, n.; pl.
Tertiaries (&?;). 1. (R. C. Ch.)
A member of the Third Order in any monastic system; as, the Franciscan
tertiaries; the Dominican tertiaries; the Carmelite
tertiaries. See Third Order, under Third.
Addis & Arnold.
2. (Geol.) The Tertiary era, period, or
formation.
3. (Zoöl.) One of the quill feathers
which are borne upon the basal joint of the wing of a bird. See
Illust. of Bird.
Ter"ti*a*ry (?), a. [L. tertiarius
containing a third part, fr. tertius third: cf. F. tertiaire.
See Tierce.] 1. Being of the third formation,
order, or rank; third; as, a tertiary use of a word.
Trench.
2. (Chem.) Possessing some quality in the
third degree; having been subjected to the substitution of three atoms or
radicals; as, a tertiary alcohol, amine, or salt. Cf.
Primary, and Secondary.
3. (Geol.) Later than, or subsequent to, the
Secondary.
4. (Zoöl.) Growing on the innermost
joint of a bird's wing; tertial; -- said of quills.
Tertiary age. (Geol.) See under Age,
8. -- Tertiary color, a color produced by the
mixture of two secondaries. "The so-called tertiary colors are
citrine, russet, and olive." Fairholt. --
Tertiary period. (Geol.) (a)
The first period of the age of mammals, or of the Cenozoic era.
(b) The rock formation of that period; -- called also
Tertiary formation. See the Chart of Geology. --
Tertiary syphilis (Med.), the third and last
stage of syphilis, in which it invades the bones and internal
organs.
Ter"ti*a*ry, n.; pl.
Tertiaries (&?;). 1. (R. C. Ch.)
A member of the Third Order in any monastic system; as, the Franciscan
tertiaries; the Dominican tertiaries; the Carmelite
tertiaries. See Third Order, under Third.
Addis & Arnold.
2. (Geol.) The Tertiary era, period, or
formation.
3. (Zoöl.) One of the quill feathers
which are borne upon the basal joint of the wing of a bird. See
Illust. of Bird.
