trehalose

from The Collaborative International Dictionary of English v.0.48

Mycose \My"cose\ (m[imac]"k[=o]s), n. [Gr. my`khs a mushroom.]
   (Chem.)
   A variety of sugar, isomeric with sucrose and obtained from
   certain lichens and fungi. Called also {trehalose}. [Written
   also {mykose}.]
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Trehalose \Tre"ha*lose`\, n. (Chem.)
   Mycose; -- so called because sometimes obtained from trehala.
   [1913 Webster]