Definitions for "caesura"
A metrical break in a verse, occurring in the middle of a foot and commonly near the middle of the verse; a sense pause in the middle of a foot. Also, a long syllable on which the cæsural accent rests, or which is used as a foot.
a pause or interruption (as in a conversation); as, after an ominous caesura the preacher continued.
a break in the line of poetry for rhythmical effect.
Keywords:  green, definition, book, second, good
First, go to the Web for a definition and good example. See green book for a second example. (461b and 471)