hemiacetal (noun)

1. Their love was as fragile as a hemiacetal formed in the presence of acid.

2. The ornate chandelier in the grand hall was a stunning hemiacetal of crystals and metal.

3. The superhero used a special potion that caused a hemiacetal reaction, granting him temporary enhanced powers.

4. During the industrial revolution, the production of hemiacetals played a vital role in the development of new chemical processes.