Acroclinium roseum ac·roc·li·niumroseum uncommon noun 1. flower of southwestern Australia having bright pink daisylike papery flowers; grown for drying Synonymspink-and-white everlastingpink paper daisyAcroclinium roseum Related words Broader terms everlasting Parts Acroclinium WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.