ratoon Syllabification: (ra·toon)Pronunciation: /rəˈto͞on, ra-/Definition of ratoon noun a new shoot or sprout springing from the base of a crop plant, especially sugar cane, after cropping. verb [no object] (of sugar cane) produce ratoons. [with object] cut down (a plant) to cause it to produce ratoons. Origin: mid 17th century (as a noun): from Spanish retoño 'a sprout'ratoon in other Oxford dictionaries Definition of ratoon in the British & World English dictionary