What is identified as "Tetrameter" in poetry?

Tetrameter in poetry refers to a specific metrical form that includes four beats or stressed syllables per line. This structure allows for a rhythmic flow that can create a sense of musicality and balance within the verse. Each line contains four principal stresses, which contributes to a consistent pattern when read aloud. This pattern contrasts with other metrical forms such as trimeter, which has three beats, and pentameter, which has five. By understanding tetrameter, poets can effectively manipulate rhythm and meter to enhance the meaning and emotional impact of their work.