proglottidn.

Brit.

/prəʊˈɡlɒtɪd/, U.S.

/proʊˈɡlɑdəd/

Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: proglottis n., -id suffix².

Etymology: < proglottis n. (see -id suffix²), originally after German Proglottide (1878 in the passage translated in quot. 1878 at main sense).

Zoology.

Any of the distinct segments forming the trunk or strobila of an adult tapeworm, each bearing a complete set of reproductive organs and often breaking away from the body after fertilization.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Platyhelminthes > [noun] > class Cestodes > member of > segmented > segments of

gourd-worm1756

proglottis1855

cucurbitin1861

proglottid1878

1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 129 In this way the Tænia-chain is formed, the last metameres of which (the so-called proglottids [Ger. Proglottiden]) break off at a certain stage of development, and form more or less independent individuals.

1930 H. G. Newth Marshall & Hurst's Junior Course Pract. Zool. (ed. 11) iv. 48 As the male organs mature before the female ones, the appearance of the proglottid undergoes a gradual change as they are pushed farther and farther away from their origin in the neck-region.

1987 E. W. Burr Compan. Bird Med. xxii. 143/2 The presence of tapeworm eggs or proglottids in the feces is diagnostic of the infection.

2002 R. Muller Worms & Human Dis. (ed. 2) ii. 72/2 Each mature proglottid measures about 12 mm wide and 10 mm long and each gravid proglottid contains about 0.8–1 × 10⁵ eggs.

Derivatives

progloˈttidean adj. rare = proglottic adj.; also figurative.

ΚΠ

1890 Cent. Dict. Proglottidean, same as proglottic.

2005 G. Brock tr. U. Eco in New Yorker 7 Mar. 63/1 My memory is proglottidean, like the tapeworm, but unlke the tapeworm it has no head..and any point may be the beginning or the end of its journey.

proglottidiˈzation n. (proglottidisation) rare the condition of being composed of proglottids; the formation of proglottids (strobilation).

ΚΠ

1901 E. R. Lankester Treat. Zool. IV. 118 The typical ‘proglottidisation’ is not expressed externally in Ligula and Triaenophorus, though the genital pores indicate the repetition of the genital organs.

2003 Molecular & Biochem. Parasitol. 126 25 The developmental biology of E[chinococcus] granulosus in the definitive host has been fully described microscopically..and is a complex process involving proglottidisation, maturation, growth and segmentation.

This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).

单词	proglottid
释义	proglottidn. Brit. /prəʊˈɡlɒtɪd/, U.S. /proʊˈɡlɑdəd/ Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: proglottis n., -id suffix². Etymology: < proglottis n. (see -id suffix²), originally after German Proglottide (1878 in the passage translated in quot. 1878 at main sense). Zoology. Any of the distinct segments forming the trunk or strobila of an adult tapeworm, each bearing a complete set of reproductive organs and often breaking away from the body after fertilization. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Platyhelminthes > [noun] > class Cestodes > member of > segmented > segments of gourd-worm1756 proglottis1855 cucurbitin1861 proglottid1878 1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 129 In this way the Tænia-chain is formed, the last metameres of which (the so-called proglottids [Ger. Proglottiden]) break off at a certain stage of development, and form more or less independent individuals. 1930 H. G. Newth Marshall & Hurst's Junior Course Pract. Zool. (ed. 11) iv. 48 As the male organs mature before the female ones, the appearance of the proglottid undergoes a gradual change as they are pushed farther and farther away from their origin in the neck-region. 1987 E. W. Burr Compan. Bird Med. xxii. 143/2 The presence of tapeworm eggs or proglottids in the feces is diagnostic of the infection. 2002 R. Muller Worms & Human Dis. (ed. 2) ii. 72/2 Each mature proglottid measures about 12 mm wide and 10 mm long and each gravid proglottid contains about 0.8–1 × 10⁵ eggs. Derivatives progloˈttidean adj. rare = proglottic adj.; also figurative. ΚΠ 1890 Cent. Dict. Proglottidean, same as proglottic. 2005 G. Brock tr. U. Eco in New Yorker 7 Mar. 63/1 My memory is proglottidean, like the tapeworm, but unlke the tapeworm it has no head..and any point may be the beginning or the end of its journey. proglottidiˈzation n. (proglottidisation) rare the condition of being composed of proglottids; the formation of proglottids (strobilation). ΚΠ 1901 E. R. Lankester Treat. Zool. IV. 118 The typical ‘proglottidisation’ is not expressed externally in Ligula and Triaenophorus, though the genital pores indicate the repetition of the genital organs. 2003 Molecular & Biochem. Parasitol. 126 25 The developmental biology of E[chinococcus] granulosus in the definitive host has been fully described microscopically..and is a complex process involving proglottidisation, maturation, growth and segmentation. This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022). < n.1878
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