Bed sore and Decubitus ulcer

Decubitus ulcer and bed sore are semantically related. In some cases you can use "Decubitus ulcer" instead a noun phrase "Bed sore".

Decubitus ulcer noun - A chronic ulcer of the skin caused by prolonged pressure on it (as in bedridden patients).

Bed sore and decubitus ulcer are semantically related. Sometimes you can replace phrase "Bed sore" with "Decubitus ulcer", this phrases are similar.