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lumpish resembling or having the characteristics of a lump. [3 definitions]
lump sum a sum of money, esp. a total amount, that is paid at one time rather than in installments.
lumpy full of or covered with lumps. [2 definitions]
lumpy jaw see actinomycosis.
Luna in Roman mythology, the goddess of the moon; Selene.
lunacy mental derangement; insanity. [2 definitions]
luna moth a large pale-green North American moth with a crescent-shaped spot on each wing and long tail-like projections on the hind wings.
lunar of or relating to the moon. [2 definitions]
lunar caustic silver nitrate, used in medicine to cauterize tissues.
lunar eclipse the obscuring of the moon's reflected light by the earth's shadow when the earth passes between the moon and the sun.
lunar month one complete revolution of the moon around the earth, a period of approximately twenty-seven or twenty-nine days.
lunar year an interval of time equal to twelve lunar months.
lunate crescent-shaped.
lunatic someone who is insane. [5 definitions]
lunatic fringe in many political, religious, and other groups, those members who hold extremist views; fanatics.
lunch a meal eaten in the middle of the day, or any light meal during the day. [2 definitions]
luncheon a formal meal during the middle of the day, often for a special occasion.
luncheonette a plain and inexpensive restaurant, usu. having a counter and tables, that serves sandwiches and other lunch food.
luncheon meat meat that is prepared in loaves, sausages, and the like, and ready to eat without cooking, usu. sliced and in sandwiches; lunch meat.
lunchroom a restaurant that serves sandwiches and other easily prepared food; luncheonette. [2 definitions]
lunchtime a time when lunch is usu. eaten.