peltatin
noun
pel·ta·tin
| \ pel-ˈtāt-ᵊn
\
\
Medical Definition of peltatin
: either of two lactones that occur as glycosides in the rootstock of the mayapple (Podophyllum peltatum) and have some antineoplastic activity:
a
or α-peltatin \ ˈal-fə-
\
: one C21H20O8 containing two hydroxyl groups
\
: one C21H20O8 containing two hydroxyl groups
b
or β-peltatin \ ˈbāt-ə-, chiefly British ˈbēt-ə- \
: one C22H22O8 containing only one hydroxyl group with the other replaced by a methoxyl group