Webster's 1913 Dictionary
MYRTACEOUS
Myr *ta "ceous, a. Etym: [L. myrtaceus.] (Bot. )
Defn: Of, pertaining to, or resembling, a large and important natural order of trees and shrubs (Myrtaceæ ), of which the myrtle is the type. It includes the genera Eucalyptus, Pimenta, Lechythis, and about seventy more.
New American Oxford Dictionary
myrtaceous
myrtaceous |məːˈteɪʃəs | ▶adjective Botany relating to or denoting plants of the myrtle family (Myrtaceae ). ORIGIN mid 19th cent.: from modern Latin Myrtaceae (plural ), from the genus name Myrtus (see myrtle ), + -ous .
Oxford Dictionary
myrtaceous
myrtaceous |məːˈteɪʃəs | ▶adjective Botany relating to or denoting plants of the myrtle family (Myrtaceae ). ORIGIN mid 19th cent.: from modern Latin Myrtaceae (plural ), from the genus name Myrtus (see myrtle ), + -ous .
The Wordsmith Dictionary