Definition of "caesura"

The caesura is meant to fall not with the comma after difficult, but after thou; and there is a most effective and grand suspension intended. It is Satan who speaks— Satan in the wilderness; and he marks, as he wishes to mark, the tremendous opposition of attitude between the two parties to the temptation.

1847, Thomas De Quincey, Milton Versus Southey and Landor

Now, then, for my prologue. I am not going to change my cæsuras and cadences for anybody; so if you do not like the heroic, or iambic trimeter brachy-catalectic, you had better not wait to hear it […]

1858, Oliver Wendell Holmes, The Autocrat of the Breakfast-Table

We feel of this, as we feel of a great passage in “Hamlet” or “Lear,” that here is verse at once capable of the highest sublimity and capable of sustaining its theme, of lifting and lowering it at will, with endless resource in the slide and pause of the caesura, to carry it on and on.

1920, Arthur Quiller-Couch, On The Art of Reading‎

He disliked the texture of those stiff verses, in their official garb, their abject reverence for grammar, their mechanical division by imperturbable cæsuras, always plugged at the end in the same way by the impact of a dactyl against a spondee.

1922, chapter 4, in John Howard, transl., Against the Grain, New York: Lieber & Lewis, translation of À rebours by Joris-Karl Huysmans, pages 54–55

Like the knocking at the door in Macbeth, or the cry of the watchman in the Tour de Nesle, they show that the horrible cæsura is over and the nightmares have fled away, because the day is breaking and the ordinary life of men is beginning to bestir itself among the streets.

c. 1870, Robert Louis Stevenson, Nuits Blanches

A quiet time. A caesura. Then everything happened almost at once, and none of it was good.

2022, Stephen King, chapter 8, in Fairy Tale, page 133