rhopaliumn.

Brit.

/rəʊˈpeɪlɪəm/, U.S.

/roʊˈpeɪliəm/

Inflections: Plural rhopalia.

Origin: A borrowing from Latin. Etymon: Latin rhopalium.

Etymology: < post-classical Latin rhopalium (1881 or earlier; attributed to Haeckel) < ancient Greek ῥόπαλον club (see rhopalic adj.) + scientific Latin -ium (see -y suffix⁴).

Zoology.

In many jellyfishes: any of several small, club-shaped sensory structures (usually four or eight) that project from the margin of the umbrella, typically containing statoliths and ocelli.Rhopalia are characteristic of the classes Scyphozoa and Cubozoa.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Acalepha > member of (jelly-fish) > parts of > sense-organ

rhopalium1881

1881 Jrnl. Royal Microsc. Soc. 1 608 The other three [orders] have..sensory (marginal) bodies or rhopalia, which..consist of a special union of an auditory and an optic organ. The Peromedusæ have four interradial rhopalia, the Cubomedusæ have four perradial.

1903 Amer. Naturalist 37 342 Callinema ornata... Margin with 16 lobes deeply incised within which is located a conspicuous rhopalium.

1950 R. W. Miner Field Bk. Seashore Life iii. 172 Eight or more tentacles alternating with eight or more rhopalia.

1979 Nature 13 Sept. 141/2 Jellyfish stopped swimming when we removed the rhopalia.

2008 Seminars Cell & Developmental Biol. 19 75/2 In box jellyfish..very complex structures characteristic of more advanced animals appear such as the camera-type eye situated within four sensory organs called rhopalia.

Derivatives

rhoˈpalial adj.

ΚΠ

1892 Jrnl. Royal Microsc. Soc. 491 A slightly elevation is noticeable on the aboral side of each rhopalial tentacle.

1979 Nature 13 Sept. 141/2 Swimming in scyphozoans is under control of rhopalial pacemakers.

2005 Biol. Bull. 209 155/2 The rhopalium is connected to the subumbrellar tissue by a rhopalial stalk.

This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).

单词	rhopalium
释义	rhopaliumn. Brit. /rəʊˈpeɪlɪəm/, U.S. /roʊˈpeɪliəm/ Inflections: Plural rhopalia. Origin: A borrowing from Latin. Etymon: Latin rhopalium. Etymology: < post-classical Latin rhopalium (1881 or earlier; attributed to Haeckel) < ancient Greek ῥόπαλον club (see rhopalic adj.) + scientific Latin -ium (see -y suffix⁴). Zoology. In many jellyfishes: any of several small, club-shaped sensory structures (usually four or eight) that project from the margin of the umbrella, typically containing statoliths and ocelli.Rhopalia are characteristic of the classes Scyphozoa and Cubozoa. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Acalepha > member of (jelly-fish) > parts of > sense-organ rhopalium1881 1881 Jrnl. Royal Microsc. Soc. 1 608 The other three [orders] have..sensory (marginal) bodies or rhopalia, which..consist of a special union of an auditory and an optic organ. The Peromedusæ have four interradial rhopalia, the Cubomedusæ have four perradial. 1903 Amer. Naturalist 37 342 Callinema ornata... Margin with 16 lobes deeply incised within which is located a conspicuous rhopalium. 1950 R. W. Miner Field Bk. Seashore Life iii. 172 Eight or more tentacles alternating with eight or more rhopalia. 1979 Nature 13 Sept. 141/2 Jellyfish stopped swimming when we removed the rhopalia. 2008 Seminars Cell & Developmental Biol. 19 75/2 In box jellyfish..very complex structures characteristic of more advanced animals appear such as the camera-type eye situated within four sensory organs called rhopalia. Derivatives rhoˈpalial adj. ΚΠ 1892 Jrnl. Royal Microsc. Soc. 491 A slightly elevation is noticeable on the aboral side of each rhopalial tentacle. 1979 Nature 13 Sept. 141/2 Swimming in scyphozoans is under control of rhopalial pacemakers. 2005 Biol. Bull. 209 155/2 The rhopalium is connected to the subumbrellar tissue by a rhopalial stalk. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < n.1881
随便看	recircled recircles recircling recirculate recirculated recirculates recirculating recirculating ball recirculation recirculations recirculatory recision recisions recitable recital recital book recitalist recitalists recitally recitals recitant recitate recitation recitation bench recitation method