baseBASE, a. 48 Such a tenure is called base, or low, and the tenant, a base tenant. So writers on the laws of England use the terms, a base fee, a base court. BASE, n. [L. basis; that which is set, the foundation or bottom.] In architecture, the base of a pillar properly is that part which is between the top of a pedestal and the bottom of the shaft; but when there is no pedestal, it is the part between the bottom of the column and the plinth. Usually it consists of certain spires or circles. The pedestal also has its base. 10. In geometry, the lowest side of the perimeter of a figure. Any side of a triangle may be called its base, but this term most properly belongs to the side which is parallel to the horizon. In rectangled triangles, the base, properly, is the side opposite to the right angle. The base of a solid figure is that on which it stands. The base of a conic section is a right line in the hyperbola and parabola, arising from the common intersection of the secant plane and the base of the cone. 11. In chimistry, any body which is dissolved by another body, which it receives and fixes. Thus any alkaline, earthy or metallic substance, combining with an acid, forms a compound or neutral salt, of which it is the base. Such salts are called salts with alkaline, earthy or metallic bases. 12. Thorough base, in music, is the part performed with base viols or theorbos, while the voices sing and other instruments perform their parts, or during the intervals when the other parts stop. It is distinguished by figures over the notes. Counter base is a second or double base, when there are several in the same concert. BASE, v.t. To embase; to reduce the value by the admixture of meaner metals. [Little used.] |