plural noun Am·bro·si·a·ce·ae \amˌbrōz(h)ēˈāsēˌē\

Definition of Ambrosiaceae

in some classifications

  1. :  a family of herbs comprising all the composites (as ragweeds) that have the flower head subtended by an involucre of separate or united bracts and the stamens separate or merely connivent — see compositae

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Origin and Etymology of ambrosiaceae

New Latin, from Ambrosia, type genus + -aceae

First Known Use: 1834

Seen and Heard

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a trip made at another's expense

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