choano-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.

combining form of Greek χοάνη funnel.

ˈchoanocyte n.

Brit.

/ˈkəʊənəsʌɪt/

U.S.

/koʊˈænəˌsaɪt/

a ‘collar cell’ in sponges and choanoflagellates.

ΘΚΠ

the world > animals > invertebrates > protozoa > class Infusoria > [noun] > member of > member of order Choanoflagellata > collar cell of

choanocyte1888

the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > part containing choanocytes > choanocyte

choanocyte1888

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

1900 E. A. Minchin in Lankester Treat. Zool. II. 27 Each cell bears at its upper free extremity a single vibratile flagellum.., which springs from the centre of an area enclosed by a delicate cup or collar of protoplasm. On account of the latter peculiarity these cells have been termed collar cells or choanocytes.

1959 Chambers's Encycl. XIII. 102/1 The choanocytes, also known as whip-cells or collared cells, consist of a spherical or oval body, with the apex drawn out to form a protoplasmic collar from the base of which springs a long protoplasmic thread or whip.

ˌchoanoˈcytal adj.

Brit.

/ˌkəʊənə(ʊ)ˈsʌɪtl/

U.S.

/koʊˌænəˈsaɪd(ə)l/

ΘΚΠ

the world > animals > invertebrates > protozoa > class Infusoria > [adjective] > belonging to order Choanoflagellata > belonging to collar cell

choanocytal1888

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

pinacocytal1887

choanocytal1888

1888 W. J. Sollas Tetractinellida p. xxxviii A contraction of the choanocytal wall.

ˌchoanoˈflagellate adj.

Brit.

/ˌkəʊənə(ʊ)ˈfladʒᵻleɪt/

/ˌkəʊənə(ʊ)ˈfladʒᵻlət/

U.S.

/ˌkoʊənəˈflædʒəˌleɪt/

/koʊˌænəˈflædʒəˌleɪt/

belonging to the order Choanoflagellata of Infusoria (see quots.); also as n., a member of this order.

ΘΚΠ

the world > animals > invertebrates > protozoa > class Infusoria > [adjective] > belonging to order Choanoflagellata

choanoflagellate1900

the world > animals > invertebrates > protozoa > class Infusoria > [noun] > member of > member of order Choanoflagellata

choanoflagellate1900

1900 E. A. Minchin in Lankester Treat. Zool. II. 53 Each collar cell resembles..a single choanoflagellate monad.

1906 Cambr. Nat. Hist. I. 121 The Craspedomonadidae (often called Choanoflagellates).

1927 J. B. S. Haldane & J. S. Huxley Animal Biol. xii. 264 The Choanoflagellates, a group of Flagellates in which a transparent collar of protoplasm surrounds the flagellum.

1960 L. Picken Organization of Cells vi. vii. 241 It is possible that the condition of being attached is primitive, since it occurs in choanoflagellates, in the choanocytes of sponges [etc.].

ˈchoanosome n.

Brit.

/ˈkəʊənəsəʊm/

U.S.

/ˈkoʊənəˌsoʊm/

/koʊˈænəˌsoʊm/

the inner part of a sponge, containing the choanocytes.

ΘΚΠ

the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > part containing choanocytes

choanosome1887

1887 Encycl. Brit. XXII. 415/1 An outer or ectosome and an inner or choanosome.

1888 W. J. Sollas Tetractinellida p. xv This investing skin may be distinguished as the ectosome, the rest of the sponge as the choanosome, the latter name framed in allusion to its being the region to which the choanocytes lining the flagellated chambers are restricted.

1959 Chambers's Encycl. XIII. 101/2 The choanosome consists of a network of irregularly star-shaped cells, joined at their points, the interstices..being filled..with an intercellular jelly.

ˌchoanoˈsomal adj.

Brit.

/ˌkəʊənə(ʊ)ˈsəʊml/

U.S.

/ˌkoʊənəˈsoʊm(ə)l/

/koʊˌænəˈsoʊm(ə)l/

ΘΚΠ

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

choanosomal1888

1888 W. J. Sollas in Rep. Sci. Results Voy. H.M.S. Challenger: Zool. XXV. p. xvi This cleavage occurs parallel to the outer surface, dividing the sponge at once into a choanosomal and ectosomal portion.

1900 E. A. Minchin in Lankester Treat. Zool. II. 214 The distal ends of the choanosomal folds.

This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2022).

单词	choano-
释义	choano-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. combining form of Greek χοάνη funnel. ˈchoanocyte n. Brit. /ˈkəʊənəsʌɪt/ , U.S. /koʊˈænəˌsaɪt/ a ‘collar cell’ in sponges and choanoflagellates. ΘΚΠ the world > animals > invertebrates > protozoa > class Infusoria > [noun] > member of > member of order Choanoflagellata > collar cell of choanocyte1888 the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > part containing choanocytes > choanocyte choanocyte1888 1888 W. J. Sollas Tetractinellida p. xiv The endoderm is partly composed of flagellated collared cells (choanocytes), and partly of pinacocytes. 1900 E. A. Minchin in Lankester Treat. Zool. II. 27 Each cell bears at its upper free extremity a single vibratile flagellum.., which springs from the centre of an area enclosed by a delicate cup or collar of protoplasm. On account of the latter peculiarity these cells have been termed collar cells or choanocytes. 1959 Chambers's Encycl. XIII. 102/1 The choanocytes, also known as whip-cells or collared cells, consist of a spherical or oval body, with the apex drawn out to form a protoplasmic collar from the base of which springs a long protoplasmic thread or whip. ˌchoanoˈcytal adj. Brit. /ˌkəʊənə(ʊ)ˈsʌɪtl/ , U.S. /koʊˌænəˈsaɪd(ə)l/ ΘΚΠ the world > animals > invertebrates > protozoa > class Infusoria > [adjective] > belonging to order Choanoflagellata > belonging to collar cell choanocytal1888 the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [adjective] > relating to a sponge > of parts of sponge > of specific cells pinacocytal1887 choanocytal1888 1888 W. J. Sollas Tetractinellida p. xxxviii A contraction of the choanocytal wall. ˌchoanoˈflagellate adj. Brit. /ˌkəʊənə(ʊ)ˈfladʒᵻleɪt/ , /ˌkəʊənə(ʊ)ˈfladʒᵻlət/ , U.S. /ˌkoʊənəˈflædʒəˌleɪt/ , /koʊˌænəˈflædʒəˌleɪt/ belonging to the order Choanoflagellata of Infusoria (see quots.); also as n., a member of this order. ΘΚΠ the world > animals > invertebrates > protozoa > class Infusoria > [adjective] > belonging to order Choanoflagellata choanoflagellate1900 the world > animals > invertebrates > protozoa > class Infusoria > [noun] > member of > member of order Choanoflagellata choanoflagellate1900 1900 E. A. Minchin in Lankester Treat. Zool. II. 53 Each collar cell resembles..a single choanoflagellate monad. 1906 Cambr. Nat. Hist. I. 121 The Craspedomonadidae (often called Choanoflagellates). 1927 J. B. S. Haldane & J. S. Huxley Animal Biol. xii. 264 The Choanoflagellates, a group of Flagellates in which a transparent collar of protoplasm surrounds the flagellum. 1960 L. Picken Organization of Cells vi. vii. 241 It is possible that the condition of being attached is primitive, since it occurs in choanoflagellates, in the choanocytes of sponges [etc.]. ˈchoanosome n. Brit. /ˈkəʊənəsəʊm/ , U.S. /ˈkoʊənəˌsoʊm/ , /koʊˈænəˌsoʊm/ the inner part of a sponge, containing the choanocytes. ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > part containing choanocytes choanosome1887 1887 Encycl. Brit. XXII. 415/1 An outer or ectosome and an inner or choanosome. 1888 W. J. Sollas Tetractinellida p. xv This investing skin may be distinguished as the ectosome, the rest of the sponge as the choanosome, the latter name framed in allusion to its being the region to which the choanocytes lining the flagellated chambers are restricted. 1959 Chambers's Encycl. XIII. 101/2 The choanosome consists of a network of irregularly star-shaped cells, joined at their points, the interstices..being filled..with an intercellular jelly. ˌchoanoˈsomal adj. Brit. /ˌkəʊənə(ʊ)ˈsəʊml/ , U.S. /ˌkoʊənəˈsoʊm(ə)l/ , /koʊˌænəˈsoʊm(ə)l/ ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [adjective] > relating to a sponge > of parts of sponge > of inner part of sponge choanosomal1888 1888 W. J. Sollas in Rep. Sci. Results Voy. H.M.S. Challenger: Zool. XXV. p. xvi This cleavage occurs parallel to the outer surface, dividing the sponge at once into a choanosomal and ectosomal portion. 1900 E. A. Minchin in Lankester Treat. Zool. II. 214 The distal ends of the choanosomal folds. This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2022). < comb. form1887
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