Anorthite :: Anorthite (n.) A mineral of the feldspar family, commonly occurring in small glassy crystals, also a constituent of some igneous rocks. It is a lime feldspar. See Feldspar..
Forthink :: Forthink (v. t.) To repent; to regret; to be sorry for; to cause regret.
Northing :: Northing (n.) Distance northward from any point of departure or of reckoning, measured on a meridian; -- opposed to southing..
Northing :: Northing (n.) The distance of any heavenly body from the equator northward; north declination.
Orthid :: Orthid (n.) A brachiopod shell of the genus Orthis, and allied genera, of the family Orthidae..
Orthis :: Orthis (n.) An extinct genus of Brachiopoda, abundant in the Paleozoic rocks..
Orthite :: Orthite (n.) A variety of allanite occurring in slender prismatic crystals.
Thankworthiness :: Thankworthiness (n.) The quality or state of being thankworthy.
Volborthite :: Volborthite (n.) A mineral occurring in small six-sided tabular crystals of a green or yellow color. It is a hydrous vanadate of copper and lime.