a reclining position (as in a bed)
An ulcer (sore) of the skin resulting from pressure and lack of movement, such as occurs when a person is mostly in a bed or a wheelchair. The ulcers occur most frequently in areas where the bone lies directly under the skin, such as the elbow, hip, or tailbone.
Pressure area, bed sore, skin opening, skin breakdown. A discolored or open area of skin damage caused by pressure. Common areas most prone to breakdown are buttocks or backside, hips, shoulder blades, heels, ankles and elbows.
Lying down. A decubitus ulcer is a bed sore, the consequence of lying in one position too long. The Latin "decubitus" (meaning lying down) is related to "cubitum" (the elbow) reflecting the fact the Romans habitually rested on their elbows when they reclined.
an ulcer or sore on the skin as a result of pressure
Refers to body position that causes an undue pressure on certain parts of the body. This pressure can lead to the eventual breakdown of skin and underlying tissue. Decubitus sores are also called bed sores or pressure sores.
Decubitus the Latin term for "lying down" commonly used in the medical world.