ptaquilosiden.

Brit.

/təˈkwɪləsʌɪd/, U.S.

/təˈk(w)ɪləˌsaɪd/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin Pteridium aquilinum , -oside suffix.

Etymology: < pt- + aquil- (in scientific Latin Pteridium aquilinum, the specific name of bracken: 1879; < Pteridium , genus name (1760; < classical Latin pterid- , pteris fern (see pteris n.) + scientific Latin -idium -idium comb. form) + classical Latin aquilinum aquiline adj.) + -oside suffix.

Biochemistry.

A carcinogenic substance present in bracken ( Pteridium aquilinum).Ptaquiloside is a terpenoid glycoside with 3-, 5-, and 6-membered rings in its molecule. Formula: C₂₀H₃₀O₈.

ΚΠ

1983 H. Niwa et al. in Tetrahedron Lett. 24 4117 From the fraction exhibiting carcinogenicity we have isolated an unstable norsesquiterpene glucoside of illudane type named ptaquiloside, the structural elucidation of which is described in the present paper.

1996 Independent (Nexis) 15 Aug. 5 The team suggests that ptaquiloside in milk is ‘certainly likely’ to be responsible for the level of stomach cancer found in farmers in Costa Rica and other Central American countries, where bracken is particularly dense.

2004 in T. Acamovic et al. Poisonous Plants & Related Toxins xxxv. 231 Ptaquiloside concentrations are highest in the young growing parts of the plant.

This is a new entry (OED Third Edition, September 2007; most recently modified version published online March 2022).

单词	ptaquiloside
释义	ptaquilosiden. Brit. /təˈkwɪləsʌɪd/, U.S. /təˈk(w)ɪləˌsaɪd/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin Pteridium aquilinum , -oside suffix. Etymology: < pt- + aquil- (in scientific Latin Pteridium aquilinum, the specific name of bracken: 1879; < Pteridium , genus name (1760; < classical Latin pterid- , pteris fern (see pteris n.) + scientific Latin -idium -idium comb. form) + classical Latin aquilinum aquiline adj.) + -oside suffix. Biochemistry. A carcinogenic substance present in bracken ( Pteridium aquilinum).Ptaquiloside is a terpenoid glycoside with 3-, 5-, and 6-membered rings in its molecule. Formula: C₂₀H₃₀O₈. ΚΠ 1983 H. Niwa et al. in Tetrahedron Lett. 24 4117 From the fraction exhibiting carcinogenicity we have isolated an unstable norsesquiterpene glucoside of illudane type named ptaquiloside, the structural elucidation of which is described in the present paper. 1996 Independent (Nexis) 15 Aug. 5 The team suggests that ptaquiloside in milk is ‘certainly likely’ to be responsible for the level of stomach cancer found in farmers in Costa Rica and other Central American countries, where bracken is particularly dense. 2004 in T. Acamovic et al. Poisonous Plants & Related Toxins xxxv. 231 Ptaquiloside concentrations are highest in the young growing parts of the plant. This is a new entry (OED Third Edition, September 2007; most recently modified version published online March 2022). < n.1983
随便看	omnibussized omnicausality omnicentralizing omnicidal omnicide omnicides omnicipient omnicompetence omnicompetences omnicompetent omniconclusive omnicorporeal omnicredulity omnidexterity omnidirectional omnidirectionality omnidirectionally omnidirective omnierudite omniessence omnifarious omnifariousness omnifariousnesses omniferous omniferousness