OBTUSION
Ob*tu"sion (, n. Etym: [L. obtusio, from obtundere to blunt. See
Obtund.]
1. The act or process of making obtuse or blunt.
2. The state of being dulled or blunted; as, the obtusion of the senses. Harvey.
OBTUSITY
Ob*tu"si*ty, n.
Defn: Obtuseness. Lond. Quart. Rev.
OBUMBRANT
Ob*um"brant, a. Etym: [L.obumbrans, p.pr.] (Zoöl.)
Defn: Overhanging; as, obumbrant feathers.
OBUMBRATE Ob*um"brate, v. t. Etym: [L. obumbratus, p.p. of obumbrare to overshadow, cloud; ob + umbrare to shade.]
Defn: To shade; to darken; to cloud. [R.] Howell.
OBUMBRATION
Ob`um*bra"tion, n. Etym: [L. obumbratio.]