A rhythmic pattern in which the stress occurs on the first syllable of each foot, as in Jack and Jill went up the hill.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a prosodic pattern in which each metrical foot has one accented syllable followed by one or more unaccented syllables.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.