10-Letter Words Containing: _,E,H,R,R,S,Y

• used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum

• made of dried flower heads of pyrethrum plants

• white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum

• spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers; source of an insecticide; sometimes placed in genus Chrysanthemum

• any igneous rock with crystals embedded in a finer groundmass of minerals

• the act of making a print by the silkscreen method

• the time during the development of human culture before the appearance of the written word

• a writer who composes rhymes; a maker of poor verses (usually used as terms of contempt for minor or inferior poets)

• discharge of pus

• chronic periodontitis; purulent inflammation of the teeth sockets

• Any of a number of naturally occurring insecticides extracted from the pyrethrum plant; unusual in having a cyclopropane ring.