1.  wintergreen(n = noun.plant) pyrola - any of several evergreen perennials of the genus Pyrola;
is a kind of herb, herbaceous plant
is a member of genus pyrola
has particulars: false wintergreen, pyrola americana, pyrola rotundifolia americana, lesser wintergreen, pyrola minor, pyrola elliptica, shinleaf, wild lily of the valley, pyrola rotundifolia, wild lily of the valley

2.  wintergreen(n = noun.plant) checkerberry, creeping wintergreen, gaultheria procumbens, ground-berry, groundberry, mountain tea, teaberry - creeping shrub of eastern North America having white bell-shaped flowers followed by spicy red berrylike fruit and shiny aromatic leaves that yield wintergreen oil;
is a kind of shrublet
has parts: boxberry, checkerberry, spiceberry, teaberry, wintergreen
is a member of gaultheria, genus gaultheria

3.  wintergreen(n = noun.food) boxberry, checkerberry, spiceberry, teaberry - spicy red berrylike fruit; source of wintergreen oil;
is a kind of berry
is a part of checkerberry, creeping wintergreen, gaultheria procumbens, ground-berry, groundberry, mountain tea, teaberry, wintergreen

   A plant which keeps its leaves green through the winter. [1913 Webster]
" In England, the name wintergreen is applied to the species of Pyrola which in America are called English wintergreen, and shin leaf (see Shin leaf, under Shin.) In America, the name wintergreen is given to Gaultheria procumbens, a low evergreen aromatic plant with oval leaves clustered at the top of a short stem, and bearing small white flowers followed by red berries; -- called also checkerberry, and sometimes, though improperly, partridge berry." [1913 Webster]

wintergreen, n. any of several plants esp. of the genus Pyrola or Gaultheria remaining green through the winter.

creeping wintergreen, false wintergreen, flowering wintergreen, lesser wintergreen, oil of wintergreen, one-flowered wintergreen, wintergreen family, wintergreen oil