nucleolusn.

Brit.

/ˌnjuːklɪˈəʊləs/,

/njuːˈklɪələs/, U.S.

/n(j)uˈkliələs/

Inflections: Plural nucleoli Brit.

/ˌnjuːklɪˈəʊlʌɪ/,

/njuːˈklɪəlʌɪ/, U.S.

/ˌn(j)ukliˈoʊlaɪ/,

/ˌn(j)uˈkliəlaɪ/.

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

Etymology: < post-classical Latin nucleolus small kernel, little nucleus (6th cent. in a medical text; also attested 1724 or earlier in astronomical use) < classical Latin nucleus nucleus n. + -olus -olus suffix. Compare German Nucleolus (apparently introduced by G. G. Valentin, in R. Wagner's Lehrbuch der Physiologie (1838) I. 133; now usually Nukleolus).It is not entirely clear whether the term was first used in German by Valentin (to whom it is usually attributed) or in English by Barry (see quot. 1839). Other German scientists had observed nucleoli, but referred to them with German terms such as Keimfleck (R. Wagner 1835), Kernchen (M. Schleiden 1838), and Kernkörperchen (T. Schwann 1839). N.E.D. (1907) gives only the pronunciation (niuklī·ŏlɒ̆s) /njuːˈkliːələs/.

Biology.

A nucleus within a nucleus; spec. a small rounded body in a cell nucleus, involved in the synthesis and processing of ribosomal RNA and proteins; (formerly also) †a paranucleus (obsolete).In quot. a1962 figurative.

ΘΚΠ

the world > life > biology > substance > cell > cell organelle or contents > [noun] > nucleus > nucleolus or paranucleus

nucleolus1839

nucleole1864

paranucleus1878

plasmasome1889

1839 M. Barry in Philos. Trans. (Royal Soc.) 129 351 Each of the vesicles of which the surface of the mulberry-like structure is composed, contains a colourless and pellucid nucleus; and each nucleus presents a nucleolus.

1845 R. B. Todd & W. Bowman Physiol. Anat. I. 158 They usually contain some central granules or nucleoli.

1870 H. A. Nicholson Man. Zool. I. i. 41 No differentiated organs of any kind beyond the nucleus and nucleolus exist.

1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 255 The nucleus or endoplast, and paranucleus or endoplastule, sometimes erroneously termed nucleolus.

1940 G. S. Carter Gen. Zool. Invertebr. iii. 38 The nucleus may contain one or two (and occasionally more) nucleoli, but many nuclei are without them.

a1962 E. E. Cummings IX [16 heures] in Compl. Poems, 1904–1962 273 There are 50(fifty)flics for every one(1)communist and all the flics are very organically arranged and their nucleus..has a nucleolus: the Prefect of Police.

1990 EMBO Jrnl. 9 4157/1 Rev and Rex are phosphoproteins localized primarily to the nucleolus of expressing cells.

This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).

单词	nucleolus
释义	nucleolusn. Brit. /ˌnjuːklɪˈəʊləs/, /njuːˈklɪələs/, U.S. /n(j)uˈkliələs/ Inflections: Plural nucleoli Brit. /ˌnjuːklɪˈəʊlʌɪ/, /njuːˈklɪəlʌɪ/, U.S. /ˌn(j)ukliˈoʊlaɪ/, /ˌn(j)uˈkliəlaɪ/. Origin: A borrowing from Latin. Etymon: Latin nucleolus. Etymology: < post-classical Latin nucleolus small kernel, little nucleus (6th cent. in a medical text; also attested 1724 or earlier in astronomical use) < classical Latin nucleus nucleus n. + -olus -olus suffix. Compare German Nucleolus (apparently introduced by G. G. Valentin, in R. Wagner's Lehrbuch der Physiologie (1838) I. 133; now usually Nukleolus).It is not entirely clear whether the term was first used in German by Valentin (to whom it is usually attributed) or in English by Barry (see quot. 1839). Other German scientists had observed nucleoli, but referred to them with German terms such as Keimfleck (R. Wagner 1835), Kernchen (M. Schleiden 1838), and Kernkörperchen (T. Schwann 1839). N.E.D. (1907) gives only the pronunciation (niuklī·ŏlɒ̆s) /njuːˈkliːələs/. Biology. A nucleus within a nucleus; spec. a small rounded body in a cell nucleus, involved in the synthesis and processing of ribosomal RNA and proteins; (formerly also) †a paranucleus (obsolete).In quot. a1962 figurative. ΘΚΠ the world > life > biology > substance > cell > cell organelle or contents > [noun] > nucleus > nucleolus or paranucleus nucleolus1839 nucleole1864 paranucleus1878 plasmasome1889 1839 M. Barry in Philos. Trans. (Royal Soc.) 129 351 Each of the vesicles of which the surface of the mulberry-like structure is composed, contains a colourless and pellucid nucleus; and each nucleus presents a nucleolus. 1845 R. B. Todd & W. Bowman Physiol. Anat. I. 158 They usually contain some central granules or nucleoli. 1870 H. A. Nicholson Man. Zool. I. i. 41 No differentiated organs of any kind beyond the nucleus and nucleolus exist. 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 255 The nucleus or endoplast, and paranucleus or endoplastule, sometimes erroneously termed nucleolus. 1940 G. S. Carter Gen. Zool. Invertebr. iii. 38 The nucleus may contain one or two (and occasionally more) nucleoli, but many nuclei are without them. a1962 E. E. Cummings IX [16 heures] in Compl. Poems, 1904–1962 273 There are 50(fifty)flics for every one(1)communist and all the flics are very organically arranged and their nucleus..has a nucleolus: the Prefect of Police. 1990 EMBO Jrnl. 9 4157/1 Rev and Rex are phosphoproteins localized primarily to the nucleolus of expressing cells. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < n.1839
随便看	bawdilier bawdiliest bawdily bawdiness bawdinesses bawding bawdish bawdreaminy bawdress bawdries bawdry bawds bawdship bawdstrot bawdy bawdy-basket bawdy-house bawdybasket bawdyhouse bawdyhouses bawheid bawke bawker bawl bawl one's eyes out