any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
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
one skilled in caring for young children or the sick (usually under the supervision of a physician)
try to cure by special care of treatment, of an illness or injury; "He nursed his cold with Chinese herbs"
treat carefully; "He nursed his injured back by lying in bed several hours every afternoon"; "He nursed the flowers in his garden and fertilized them regularly"
serve as a nurse; care for sick or handicapped people
(grammar) a word or phrase or clause forming part of a larger grammatical construction
a member of a constituency; a citizen who is represented in a government by officials for whom he or she votes; "needs continued support by constituents to be re-elected"