a character in a children's Christmas song. Rudolph is a REINDEER (= a large grass-eating wild animal with large horns) who has a shiny red nose. The other REINDEER think his nose looks silly, but SANTA CLAUS asks him to help the other REINDEER to pull his SLEIGH on a FOGGY night, because his bright nose helps them to see where they are going.
an erect greyish branching lichen of Arctic and even some north temperate regions constituting the chief food for reindeer and caribou and sometimes being eaten by humans
an erect greyish branching lichen of Arctic and even some north temperate regions constituting the chief food for reindeer and caribou and sometimes being eaten by humans