The Collaborative International Dictionary of English v.0.48:

inosite \in"o*site\, n. [Gr. 'i`s, 'ino`s, strength, muscle.]
   (Physiol. Chem.)
   Same as inositol.
   [PJC]

The Collaborative International Dictionary of English v.0.48:

inositol \i*no"si*tol\ ([i^]*n[o^]s"[i^]*t[o^]l), n. [Gr. 'i`s,
   'ino`s, strength, muscle.] (Physiol. Chem.)
   A white crystalline substance (C6H12O6) with a sweet taste,
   widely distributed in certain animal tissues and fluids,
   particularly in the muscles of the heart and lungs, and also
   in some plants, as in unripe pease, beans, potato sprouts,
   etc. Although isomeric with dextrose, it has no carbonyl
   (aldehyde or ketone) group, and is therefore not a
   carbohydrate, but a derivative of cyclohexane. Called also
   inosite, cyclohexitol, cyclohexanehexol,
   hexahydroxycyclohexane and phaseomannite. There are nine
   possible steroisomers, not all of which are found naturally.
   The predominate natural form is
   cis-1,2,3,5-trans-4,6-cyclohexanehexol, also called
   myo-inositol. The naturally occurring phytic acid in plants
   is the hexaphosphate of inositol, from which inositol may be
   manufactured; phytin is the calcium-magnesium salt of phytic
   acid. It is also a component of phosphatidylinositol. --MI11
   [1913 Webster +PJC]