bean: any of various edible seeds of plants of the family Leguminosae used for food
legume: the seedpod of a leguminous plant (such as peas or beans or lentils)
mantoux test: tuberculin (a derivative of tubercle bacillus) is injected intradermally; a red area appearing 1-3 days later signifies an exposure (past or present) to tubercle bacilli and the need for further testing