The term 'BEAT, AS A HEART' can be solved by two crossword solutions: THROB (5 letters) and PULSATE (7 letters). The term 'beat, as a heart' is used to describe the rhythmic contraction and expansion of the heart, which is essential for pumping blood throughout the body. The word 'THROB' is often used to describe this action, as it implies a strong, steady beat. The word 'PULSATE' is also used to describe the same action, but it implies a more rapid, pulsing beat.