KEEL n.
A low, flat-bottomed freight boat. See Keel, n., 3. -- Keel piece, one of the timbers or sections of which a keel is composed. On even keel, in a level or horizontal position, so that the draught of water at the stern and the bow is the same. Ham. Nav. Encyc.
MATHEMATICS n.
Geometry, including Trigonometry and Conic Sections. 3. Analysis, in which letters are used, including Algebra, Analytical Geometry, and Calculus. Each of these divisions is divided into pure or abstract, which considers magnitude or quantity abstractly, without relation to matter; and mixed or applied, which treats of…