medical Definition of kino
1
: any of several dark red to black tannin-containing dried juices or extracts obtained from various tropical trees;
especially
: the dried juice obtained usually from the trunk of an Indian and Sri Lankan tree (Pterocarpus marsupium) as brown or black fragments and used as an astringent in diarrhea
2
: a tree that produces kino (especially Pterocarpus marsupium)
