SESBAN Ses"ban, n. Etym: [F., fr. Ar. saisaban, seiseban, a kind of tree, fr. Per. sisaban seed of cinquefoil.] (Bot.)
Defn: A leguminous shrub (Sesbania aculeata) which furnishes a fiber used for making ropes.
Note: The name is applied also to the similar plant, Sesbania
Ægyptiaca, and other species of the same genus.
SESQUI-
Ses`qui-. Etym: [L., one half more, one and a half.] (Chem.)
Defn: A combining form (also used adjectively) denoting that three atoms or equivalents of the substance to the name of which it is prefixed are combined with two of some other element or radical; as, sesquibromide, sesquicarbonate, sesquichloride, sesquioxide.
Note: Sesquidupli- is sometimes, but rarely, used in the same manner to denote the proportions of two and a half to one, or rather of five to two.
SESQUIALTER
Ses`qui*al"ter, a.
Defn: Sesquialteral.
SESQUIALTER; SESQUIALTERA
Ses`qui*al"ter, Ses`qui*al"ter*a, n. Etym: [NL. sesquialtera.] (Mus.)
Defn: 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.