Definition of: myrtaceous

(mûr·tā′shəs) adjective
Pertaining to or designating a family (Myrtaceae) of trees or shrubs, the myrtle family, widely distributed in tropical and semitropical countries, and including many valuable aromatic resin- and timber-producing genera, as Pimenta, Eucalyptus, Caryophyllus, etc. [<NL Myrtaceae <L myrtus a myrtle tree]