When talking about melted DNA, there are several synonyms that can be used to describe the same phenomenon. For instance, denatured DNA means that the hydrogen bonds holding the two DNA strands together have been broken, resulting in the separation of the strands. Similarly, single-stranded DNA refers to the same separation of the strands, but it emphasizes that only one of the two strands is present. Unwound DNA is another term that refers to the separation of the strands. Finally, melted DNA can also be described as "melted," which implies that it was previously a solid, but now it has become liquid due to increased temperature or other factors.