The wavelike contractions of the smooth muscle in the  gastrointestinal system are called peristalsis. The purpose of  peristalsis is to push boluses of food along the gastr â¦ ointestinal  tract.
quibble (third-person singular simple present quibbles, present participle quibbling, simple past and past participle quibbled) (intransitive) To complain or argue in a trivial or petty manner. They are constantly quibbling over insignificant details.
noun. A quill being used as a pen. A quill being used as a pen. The definition of a quill is a stiff feather in a bird's wing or tail, the hollow stem of a feather or the spines from a porcupine. any of various things made from the quill of a feather, specif., a pen for writing. 2  a musical pipe made of a hollow stem, reed, or cane. 3  a weaver's spindle or bobbin. 4  a hollow shaft in certain mechanical devices. 5  Pharmacy a small roll of dried bark, as of cinchona, cinnamon, etc.