Plural form of knee-cap (alternative spelling of kneecaps).(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "knee-caps" in a sentence
"When his knees were bared, Saxon could see the skin across the knee-caps was broken and gone."
"Ludmilla Zinoviev, she of the huge knee-caps, paraded about with the giant tuber as if it were a delicate baby, instead of the glorious fruit of collective agriculture that it is!"
" Ludmilla Zinoviev, she of the huge knee-caps, paraded about with the giant tuber as if it were a delicate baby, instead of the glorious fruit of collective agriculture that it is!"