Mĕs'o-lŏg'a-rĭthm, n.
n. [Fr. mésologarithme, from Gr. μέσος, middle, and Fr. logarithme, Eng. logarithm, q. v.] A logarithm of the cosine or cotangent. [Obs.] Kepler. Hutton.
n. [Fr. mésologarithme, from Gr. μέσος, middle, and Fr. logarithme, Eng. logarithm, q. v.] A logarithm of the cosine or cotangent. [Obs.] Kepler. Hutton.