pinacocyten.

Brit.

/ˈpɪnəkə(ʊ)sʌɪt/, U.S.

/ˈpɪnəkəˌsaɪt/

Forms: 1800s pinnacocyte (irregular), 1800s– pinacocyte.

Origin: A borrowing from Greek, combined with English elements. Etymons: Greek πινακ- , πίναξ , -o- connective, -cyte comb. form.

Etymology: < ancient Greek πινακ-, πίναξ pinax n. + -o- connective + -cyte comb. form.In forms pinnacocyte , pinnacocytal in quot. 1887 at main sense, 1887 for pinacocytal adj. at Derivatives perhaps influenced by pinnacle n.

Zoology.

Each of the flattened cells which form the outermost cell layer in a sponge.

ΘΚΠ

the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > other specific cells in sponges

myocyte1887

pinacocyte1887

scleroblast1887

porocyte1898

1887 W. J. Sollas in Encycl. Brit. XXII. 418/2 The ectoderm usually consists of simple pavement epithelial cells (pinnacocytes).

1888 W. J. Sollas Tetractinellida p. xiv The endoderm is partly composed of flagellated collared cells (choanocytes), and partly of pinacocytes.

1900 E. A. Minchyin in E. R. Lankester Treat. Zool. ii. iii. 44 The nature of this epithelium is remarkably uniform, consisting of a single layer of flattened, plate-like cells (pinacocytes, Sollas), with a..nucleus lodged in the thicker central portion.

1962 New Scientist 15 Mar. 638 Cells called pinacocytes..which..probably combine the properties of a sensory tissue with those of a tissue producing tension.

1991 R. S. K. Barnes & K. H. Mann Fund. Aquatic Ecol. (ed. 2) x. 193/1 Sponges comprise one of the few groups of metazoans that can collect suspended particles in the bacterial size range. Larger particles..are engulfed by the pinacocytes surrounding the incurrent pores.

Derivatives

ˌpinacoˈcytal adj. rare

ΘΚΠ

the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [adjective] > relating to a sponge > of parts of sponge > of specific cells

pinacocytal1887

choanocytal1888

1887 W. J. Sollas in Encycl. Brit. XXII. 427/1 The pinnacocytal layer.

ˌpinacoˈcytic adj. rare

ΚΠ

1983 Philos. Trans. (Royal Soc.) B. 301 419 The major differences include..acellular as against cellular (pinacocytic) epithelia.

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

单词	pinacocyte
释义	pinacocyten. Brit. /ˈpɪnəkə(ʊ)sʌɪt/, U.S. /ˈpɪnəkəˌsaɪt/ Forms: 1800s pinnacocyte (irregular), 1800s– pinacocyte. Origin: A borrowing from Greek, combined with English elements. Etymons: Greek πινακ- , πίναξ , -o- connective, -cyte comb. form. Etymology: < ancient Greek πινακ-, πίναξ pinax n. + -o- connective + -cyte comb. form.In forms pinnacocyte , pinnacocytal in quot. 1887 at main sense, 1887 for pinacocytal adj. at Derivatives perhaps influenced by pinnacle n. Zoology. Each of the flattened cells which form the outermost cell layer in a sponge. ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > other specific cells in sponges myocyte1887 pinacocyte1887 scleroblast1887 porocyte1898 1887 W. J. Sollas in Encycl. Brit. XXII. 418/2 The ectoderm usually consists of simple pavement epithelial cells (pinnacocytes). 1888 W. J. Sollas Tetractinellida p. xiv The endoderm is partly composed of flagellated collared cells (choanocytes), and partly of pinacocytes. 1900 E. A. Minchyin in E. R. Lankester Treat. Zool. ii. iii. 44 The nature of this epithelium is remarkably uniform, consisting of a single layer of flattened, plate-like cells (pinacocytes, Sollas), with a..nucleus lodged in the thicker central portion. 1962 New Scientist 15 Mar. 638 Cells called pinacocytes..which..probably combine the properties of a sensory tissue with those of a tissue producing tension. 1991 R. S. K. Barnes & K. H. Mann Fund. Aquatic Ecol. (ed. 2) x. 193/1 Sponges comprise one of the few groups of metazoans that can collect suspended particles in the bacterial size range. Larger particles..are engulfed by the pinacocytes surrounding the incurrent pores. Derivatives ˌpinacoˈcytal adj. rare ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [adjective] > relating to a sponge > of parts of sponge > of specific cells pinacocytal1887 choanocytal1888 1887 W. J. Sollas in Encycl. Brit. XXII. 427/1 The pinnacocytal layer. ˌpinacoˈcytic adj. rare ΚΠ 1983 Philos. Trans. (Royal Soc.) B. 301 419 The major differences include..acellular as against cellular (pinacocytic) epithelia. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < n.1887
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