Which positioning term indicates lying on either side?

The term that indicates lying on either side is "lateral." This positioning is commonly used in healthcare settings to provide comfort to patients, enhance breathing, prevent pressure ulcers, and facilitate care. When a person is in the lateral position, it allows for pressure to be distributed along the flattened side of the body, which helps to avoid injuries that can occur from sustained pressure on bony prominences.

The other terms refer to specific positions that do not describe lying on the side. "Supine" refers to lying flat on one's back, "prone" means lying face down, and "Fowler's" is an upright position where the upper body is elevated. Understanding these terms is essential for providing appropriate patient care and ensuring safety and comfort.