Definition of retinispora
plural -s
1
: any of various Japanese ornamental dwarf shrubs of the genus Chamaecyparis that resemble cypresses;
especially
: any of several shrubs that are horticultural varieties derived from the sawara cypress or the sun tree
2
: any of several shrubs of the genus Thuja that retain the needlelike juvenile foliage permanently and are propagated by cuttings or grafting
