n genus of terrestrial orchids having usually a single pair of broad shining leaves near the middle of the stem; found in temperate Asia and North America and Europe
n orchid having two triangular leaves and a short lax raceme of green to rust-colored flowers with the lip flushed mauve; Europe and Asia and North America and Greenland
n an infectious disease of animals and humans (especially newborn or immunosuppressed persons) caused by the bacterium Listeria monocytogenes; in sheep and cattle the infection frequently involves the central nervous system and causes various neurological symptoms