pyrethrum – מילון אנגלי-אנגלי
pyrethrum
n.
type of flower, any of several varieties of chrysanthemum
Pyrethrum
Pyrethrum was a genus of several Old World plants now classified as
Chrysanthemum or
Tanacetum (e.g.,
C. coccineum) which are cultivated as ornamentals for their showy
flower heads.
Pyrethrum continues to be used as a common name for plants formerly included in the genus
Pyrethrum. Pyrethrum is also the name of a natural
insecticide made from the dried flower heads of
Chrysanthemum cinerariifolium and
Chrysanthemum coccineum.
Pyrethrum
Noun
1. used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
(synonym) genus Pyrethrum
(hypernym) asterid dicot genus
(member-holonym) Compositae, family Compositae, Asteraceae, family Asteraceae, aster family
pyrethrum
Noun
1. made of dried flower heads of pyrethrum plants
(hypernym) insecticide, insect powder
2. white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
(synonym) Dalmatian pyrethrum, Dalmatia pyrethrum, Tanacetum cinerariifolium, Chrysanthemum cinerariifolium
(hypernym) herb, herbaceous plant
(member-holonym) Tanacetum, genus Tanacetum
3. 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
(synonym) painted daisy, Tanacetum coccineum, Chrysanthemum coccineum
(hypernym) flower
(member-holonym) Tanacetum, genus Tanacetum
Pyrethrum (das)
n.
pyrethrum, type of flower, any of several varieties of chrysanthemum
pyrethrum
N
Spanish camomile (Collins)
