protrusion• The foot is reduced to a protrusion that they use to pull themselves down into the sand.• I recall... the shocking distension and protrusion of the eyeballs of dead men and dead horses.• Oddhorns and protrusions covered their faces.• Intensepain in the root of the tongue on protrusion may be present or the sensation of a hair on the tongue.• These protrusionsswelled until they eventually budded off the oillayer.