noun
fully operational unit; working item
Used primarily in second-hand sales to indicate that an item is confirmed to be in full working order, often for electronics or machinery.
この完動品のカメラは中古ですが、動作確認済みです。
This fully operational camera is second-hand, but its functionality has been verified.
Refers to junk or untested items sold as-is, the opposite of 完動品.
Compound of 完 (complete) + 動 (operate) + 品 (item), likely coined in second-hand market contexts.