Trimeter: A line of verse consisting of three metrical feet.
EXAMPLE: The hymn “Amazing Grace” (1779), written by John Newton, in which iambic tetrameter and iambic trimeter lines alternate throughout:
Amaz│ing grace!│(how sweet│the sound)
That sav’d│a wretch│like me! …
The opening lines, written in trochaic trimeter, of Robert Browning’s “Home Thoughts, from Abroad” (1845):
Oh to│be in│England
Now that│April’s│there… .