Webster's 1913 Dictionary
PRUNUS
Pru "nus, n. Etym: [L., a plum tree. ] (Bot. )
Defn: A genus of trees with perigynous rosaceous flowers, and a single two-ovuled carpel which usually becomes a drupe in ripening.
Note: Originally, this genus was limited to the plums, then, by Linnæus, was made to include the cherries and the apricot. Later botanists separated these into several genera, as Prunus, Cerasus, and Armeniaca, but now, by Bentham and Hooker, the plums, cherries,cherry laurels, peach, almond, and nectarine are all placed in Prunus.
New American Oxford Dictionary
prunus
pru nus |ˈpro͞onəs ˈprunəs | ▶noun a tree or shrub of a large genus that includes many varieties grown for their spring blossom (cherry and almond ) or for their fruit (plum, peach, and apricot ). [Genus Prunus, family Rosaceae. ] ORIGIN modern Latin, from Latin, literally ‘plum tree. ’
Oxford Dictionary
prunus
prunus |ˈpruːnəs | ▶noun a tree or shrub of a large genus that includes many varieties grown for their spring blossom (cherry and almond ) or for their fruit (plum, peach, and apricot ). ●Genus Prunus, family Rosaceae. ORIGIN modern Latin, from Latin, literally ‘plum tree ’.
Duden Dictionary
Prunus
Pru nus Substantiv, feminin , die |Pr u nus |die Prunus; Genitiv: der Prunus griechisch-lateinisch Gattung der Steinobstgewächse mit vielen einheimischen Obstbäumen Kirsche, Pfirsich, Pflaume usw.
The Wordsmith Dictionary