PYRETHRIN

Meaning of PYRETHRIN in English

n. any of several active constituents of pyrethrum flowers used in the manufacture of insecticides.

Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012

PYRETHRIN — noun Etymology: International Scientific Vocabulary, from Latin pyrethrum Date: 1871 either of two oily liquid esters C 21 H 28 …
Толковый словарь английского языка - Merriam Webster
PYRETHRIN — pīˈrēthrə̇n also -reth- noun ( -s ) Etymology: International Scientific Vocabulary pyrethr- (from New Latin Pyrethrum ) + -in; originally …
Webster's New International English Dictionary
PYRETHRIN — (n.) A substance resembling, and isomeric with, ordinary camphor, and extracted from the essential oil of feverfew; -- called also …
Английский словарь Webster
PYRETHRIN — ( n. ) A substance resembling, and isomeric with, ordinary camphor, and extracted from the essential oil of feverfew; -- …
Webster's Revised Unabridged English Dictionary
PYRETHRIN — /puy ree"thrin, -reth"rin/ , n. Chem. 1. Also called pyrethrin I . a viscous, water-insoluble liquid, C 21 H 28 …
Random House Webster's Unabridged English Dictionary
PYRETHRIN — n. chemical compound used as an insecticide
Толковый словарь английского языка - Редакция bed
PYRETHRIN — noun Etymology: International Scientific Vocabulary, from Latin pyrethrum Date: 1871 : either of two oily liquid esters C 21 H …
Merriam-Webster's Collegiate English vocabulary
PYRETHRIN — noun a substance resembling, and isomeric with, ordinary camphor, and extracted from the essential oil of feverfew; called also …
Webster English vocab
PYRETHRIN — [ pʌɪ'ri:θrɪn ] ■ noun Chemistry any of a group of insecticidal compounds present in pyrethrum flowers. Derivatives pyrethroid noun
Concise Oxford English vocab
PYRETHRIN — [py.re.thrin] n [ISV, fr. L pyrethrum] (1924): either of two oily liquid esters having insecticidal properties and occurring esp. in …
Merriam-Webster English vocab
PYRETHRIN — pyrethrin BrE AmE paɪ ə ˈriːθ rɪn § \ -r ə n -ˈreθ-
Longman Pronunciation English Dictionary
PYRETHRIN — n. any of several active constituents of pyrethrum flowers used in the manufacture of insecticides.
Английский основной разговорный словарь
PYRETHRIN — n. any of several active constituents of pyrethrum flowers used in the manufacture of insecticides.
Oxford English vocab
PYRETHRIN — n. Pronunciation: p ī - ' r ē -thr ə n, - ' re- Function: noun Etymology: International Scientific Vocabulary, …
Merriam Webster Collegiate English Dictionary
PYRETHRIN AND PIPERONYL BUTOXIDE — MedMaster
Drug information English vocab
RID — MedMaster - Pyrethrin and Piperonyl Butoxide USP DI - Pyrethrins and Piperonyl Butoxide (Topical)
Drug information English vocab
R C — MedMaster - Pyrethrin and Piperonyl Butoxide
Drug information English vocab
PRONTO — MedMaster - Pyrethrin and Piperonyl Butoxide
Drug information English vocab
END LICE — MedMaster - Pyrethrin and Piperonyl Butoxide
Drug information English vocab
RESMETHRIN — noun Etymology: res- (probably transposed from ester) + -methrin, blend of methyl and -ethrin (as in pyrethrin) Date: 1971 a …
Толковый словарь английского языка - Merriam Webster
PYRETHROID — noun Etymology: pyrethrin + -oid Date: 1949 any of various synthetic compounds that are related to the pyrethrins and resemble …
Толковый словарь английского языка - Merriam Webster
PERMETHRIN — noun Etymology: per- + methyl + pyrethrin Date: 1976 a synthetic pyrethroid C 21 H 20 Cl 2 O 3 …
Толковый словарь английского языка - Merriam Webster
ALLETHRIN — noun Etymology: allyl + pyrethrin Date: 1950 a light yellow viscous oily synthetic pyrethroid insecticide C 19 H 26 O …
Толковый словарь английского языка - Merriam Webster
PYRETHRUM — Any of certain plant species of the genus Chrysanthemum (see chrysanthemum ) native to South Asia, whose aromatic flower heads, …
Английский словарь Британика
CHRYSANTHEMUMIC ACID — (|) ̷ ̷| ̷ ̷ ̷ ̷|məmik- noun Etymology: New Latin Chrysanthemum + English -ic : an acid C 9 H 15 COOH that occurs in …
Webster's New International English Dictionary
CHRYSANTHEMUM-DICARBOXYLIC ACID — noun : an acid C 10 H 14 O 4 derived from chrysanthemumic acid that occurs in the form of …
Webster's New International English Dictionary
PERMETHRIN — n. synthetic pyrethrin used as an insecticide and to treat tick and lice infestation (Chemistry)
Толковый словарь английского языка - Редакция bed
RESMETHRIN — noun Etymology: res- (probably transposed from ester ) + -methrin, blend of methyl and -ethrin (as in pyrethrin ) Date: …
Merriam-Webster's Collegiate English vocabulary
PIPERONYL BUTOXIDE — noun Etymology: piperon al + -yl + but yl + oxide Date: 1945 : an insecticide C 19 H 30 …
Merriam-Webster's Collegiate English vocabulary
PYRETHROID — [py.re.throid] n [pyrethrin + -oid] (1949): any of various synthetic compounds that are related to the pyrethrins and resemble them …
Merriam-Webster English vocab
PERMETHRIN — [per.meth.rin] n [per- + methyl + pyrethrin] (1976): a synthetic pyrethrin used esp. as an insecticide
Merriam-Webster English vocab
ALLETHRIN — [al.le.thrin] n [allyl + pyrethrin] (1950): a light yellow viscous oily synthetic insecticide used esp. in household aerosols
Merriam-Webster English vocab

Concise Oxford English Dictionary

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