Defn: The quality or state of being sincere; honesty of mind or
intention; freedom from simulation, hypocrisy, disguise, or false
pretense; sincereness.
I protest, in the sincerity of love. Shak.
Sincerity is a duty no less plain than important. Knox.

SINCH
Sinch, n. Etym: [See Cinch.]

Defn: A saddle girth made of leather, canvas, woven horsehair, or woven grass. [Western U.S.]

SINCH
Sinch, v. t.

Defn: To gird with a sinch; to tighten the sinch or girth of (a saddle); as, to sinch up a sadle. [Western U.S.]

SINCIPITAL
Sin*cip"i*tal, a. (Anat.)

Defn: Of or pertaining to the sinciput; being in the region of the sinciput.

SINCIPUT
Sin"ci*put, n. Etym: [L., half a head; semihalf + caput the head.]

1. (Anat.)

Defn: The fore part of the head.