Wiktionary
knee-caps
n. (knee-cap lang=en nodot=1) ((alternative spelling of kneecaps lang=en nocap=1 nodot=1)).
Usage examples of "knee-caps".
Yesterday he saw some one riding by on horseback who had on knee-caps, and he said, "What has he got on his knees?
Her knees were bare, and the skin at the back of them was smooth and flawless as the inner lining of a nautilus shell, but her knee-caps were smudged with mud where she had knelt to help him.