planoblastn.

Brit.

/ˈplanə(ʊ)blɑːst/,

/ˈplanə(ʊ)blast/, U.S.

/ˈplænəˌblæst/

Origin: Formed within English, by compounding. Etymons: plano- comb. form², -blast comb. form.

Etymology: < plano- comb. form² + -blast comb. form.

Zoology. Now rare.

The free-swimming medusoid gonophore of some hydrozoans.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of > zooid > reproductive

ovarian vesicle1797

gonophore1859

sporosac1859

phyogemmarium1861

planoblast1871

Medusa1888

1871 G. J. Allman Monogr. Gymnoblastic Hydroids I. Introd. 15 Planoblast... A generative bud with a structure fitting it for a free locomotive life when detached from the hydrosome.

1871 G. J. Allman Monogr. Gymnoblastic Hydroids I. Introd. 15 Umbrella, the gelatinous bell of a medusiform planoblast.

1888 Amer. Naturalist 22 840 The planoblasts are almost always Anthomedusæ, i.e., with the generative elements developed in the walls of the manubrium.

Derivatives

† planoblastic adj. Obsolete rare Apparently only attested in dictionaries or glossaries.

ΚΠ

1890 Cent. Dict. Planoblastic, of the nature of or pertaining to planoblasts; medusoid.

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).

单词	planoblast
释义	planoblastn. Brit. /ˈplanə(ʊ)blɑːst/, /ˈplanə(ʊ)blast/, U.S. /ˈplænəˌblæst/ Origin: Formed within English, by compounding. Etymons: plano- comb. form², -blast comb. form. Etymology: < plano- comb. form² + -blast comb. form. Zoology. Now rare. The free-swimming medusoid gonophore of some hydrozoans. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of > zooid > reproductive ovarian vesicle1797 gonophore1859 sporosac1859 phyogemmarium1861 planoblast1871 Medusa1888 1871 G. J. Allman Monogr. Gymnoblastic Hydroids I. Introd. 15 Planoblast... A generative bud with a structure fitting it for a free locomotive life when detached from the hydrosome. 1871 G. J. Allman Monogr. Gymnoblastic Hydroids I. Introd. 15 Umbrella, the gelatinous bell of a medusiform planoblast. 1888 Amer. Naturalist 22 840 The planoblasts are almost always Anthomedusæ, i.e., with the generative elements developed in the walls of the manubrium. Derivatives † planoblastic adj. Obsolete rare Apparently only attested in dictionaries or glossaries. ΚΠ 1890 Cent. Dict. Planoblastic, of the nature of or pertaining to planoblasts; medusoid. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < n.1871
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