a cavity or passage in a tubular organ; "the lumen of the intestine"
a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions
the quality of being difficult to do; "he assigned a series of problems of increasing hardness"; "the ruggedness of his exams caused half the class to fail"
the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale
the quality of being solid and reliable financially or factually or morally; "the solidity of the evidence worked in his favor"; "the solidness of her faith gave her enduring hope"
march aggressively into another's territory by military force for the purposes of conquest and occupation; "Hitler invaded Poland on September 1, 1939"
penetrate or assault, in a harmful or injurious way; "The cancer had invaded her lungs"
occupy in large numbers or live on a host; "the Kudzu plant infests much of the South and is spreading to the North"
a measure of a person's intelligence as indicated by an intelligence test; the ratio of a person's mental age to their chronological age (multiplied by 100)
a disposition to exhibit uncontrolled anger; "his temper was well known to all his employees"
the elasticity and hardness of a metal object; its ability to absorb considerable energy before cracking
a characteristic (habitual or relatively temporary) state of feeling; "whether he praised or cursed me depended on his temper at the time"; "he was in a bad humor"
make more temperate, acceptable, or suitable by adding something else; moderate; "she tempered her criticism"
adjust the pitch (of pianos)
harden by reheating and cooling in oil; "temper steel"