Arrowroot is a substance obtained from a West Indian plant. It is used in cooking, for example for thickening sauces or in making biscuits.
arrowroot in British English
(ˈærəʊˌruːt)
noun
1.
a white-flowered West Indian plant, Maranta arundinacea, whose rhizomes yield an easily digestible starch: family Marantaceae
2.
the starch obtained from this plant
3.
any of several other plants whose rhizomes or roots yield starch
arrowroot in American English
(ˈæroʊˌrut; ˈæroʊˌrʊt; ˈɛroʊˌrut; ˈɛroʊˌrʊt)
noun
1.
any of a number of tropical plants of various families with clumplike roots; esp., a West Indian plant (Maranta arundinacea) of the arrowroot family with large leaves, white flowers, and starchy roots
2.
an easily digestible starch derived from an arrowroot (esp. M. arundinacea)
adjective
3.
designating a family (Marantaceae, order Zingiberales) of monocotyledonous, tropical American plants
Word origin
altered, from use as antidote for poisoned arrows < Arawakan aru-aru, lit., meal of meals