from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A system of physical conditioning designed to enhance circulatory and respiratory efficiency that involves vigorous sustained exercise, such as jogging, swimming, or cycling.
- n. A program of physical fitness that involves such exercise.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A form of exercise, designed to enhance one's cardiovascular fitness, normally performed to music
from the GNU version of the Collaborative International Dictionary of English
- n. physical exercises performed in a sustained and strenuous fashion designed to cause a temporary increase in respiration rate and heart rate, such a running, swimming, walking, or calisthenics. Calisthenic sessions in groups, performed by following a leader in moving to a rhythmic musical accompaniment, are a popular form of aerobics.
- n. a system of physical conditioning relying largely on aerobics exercises.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. exercise that increases the need for oxygen
From aerobic.(American Heritage® Dictionary of the English Language, Fourth Edition)