Sesquialter
(Ses`qui*al"ter Ses`qui*al"ter*a) n. [NL. sesquialtera.] (Mus.) A stop on the organ, containing
several ranks of pipes which reënforce some of the high harmonics of the ground tone, and make the
sound more brilliant.
Sesquialteral
(Ses`qui*al"ter*al Ses`qui*al"ter*ate) a. [L. sesquialter once and a half; sesqui- + alter
other: cf. F. sesquialtére.] Once and a half times as great as another; having the ratio of one and a half
to one.
Sesquialteral ratio (Math.),
the ratio of one and a half to one; thus, 9 and 6 are in a sesquialteral
ratio.
Sesquialterous
(Ses`qui*al"ter*ous) a. Sesquialteral.
Sesquibasic
(Ses`qui*ba"sic) a. [Sesqui- + basic.] (Chem.) Containing, or acting as, a base in the
proportions of a sesqui compound.
Sesquiduplicate
(Ses`qui*du"pli*cate) a. [Sesqui- + duplicate.] Twice and a half as great (as another
thing); having the ratio of two and a half to one.
Sesquiduplicate ratio (Math.),
the ratio of two and a half to one, or one in which the greater term
contains the lesser twice and a half, as that of 50 to 20.
Sesquioxide
(Ses`qui*ox"ide) n. [Sesqui- + oxide.] (Chem.) An oxide containing three atoms of oxygen
with two atoms (or radicals) of some other substance; thus, alumina, Al2O3 is a sesquioxide.
Sesquipedal
(Ses*quip"e*dal Ses`qui*pe*da"li*an) a. [Sesqui- + pedal: cf. F. sesquipédal, L. sesquipedalis.]
Measuring or containing a foot and a half; as, a sesquipedalian pygmy; — sometimes humorously applied
to long words.
Sesquipedalianism
(Ses`qui*pe*da"li*an*ism Ses*quip"e*dal*ism) n. Sesquipedality.
Sesquipedality
(Ses`qui*pe*dal"i*ty) n.
1. The quality or condition of being sesquipedal. Sterne.
2. The use of sesquipedalian words; style characterized by the use of long words; sesquipedalism.
Sesquiplicate
(Ses*quip"li*cate) a. [Sesqui- + plicate.] (Math.) Subduplicate of the triplicate; — a
term applied to ratios; thus, a and a′ are in the sesquiplicate ratio of b and b′, when
a is to a′ as the square root of the cube of b is to the square root of the cube of b′, or
a:a′::&radicb3:&radicb′3.
The periodic times of the planets are in the sesquiplicate ratio of their mean distances.
Sir I. Newton. Sesquisalt
(Ses"qui*salt) n. [Sesqui- + salt.] (Chem.) A salt derived from a sesquioxide base, or
made up on the proportions of a sesqui compound.
Sesquisulphide
(Ses`qui*sul"phide) n. [Sesqui- + sulphide.] (Chem.) A sulphide, analogous to a
sesquioxide, containing three atoms of sulphur to two of the other ingredient; — formerly called also
sesquisulphuret; as, orpiment, As2S3 is arsenic sesquisulphide.
Sesquitertial
(Ses`qui*ter"tial) a. Sesquitertian.
Sesquitertian
(Ses`qui*ter"tian Ses`qui*ter"tian*al) a. [Sesqui- + L. tertianus belonging to the third. Cf.
Tertian.] (Math.) Having the ratio of one and one third to one