† paratomousadj.¹

Forms: 1800s paratomous, 1800s parotomous.

Origin: A borrowing from Greek, combined with English elements; modelled on a German lexical item. Etymons: para- prefix¹, Greek -τόμος , -ous suffix.

Etymology: < para- prefix¹ + ancient Greek -τόμος (see -tome comb. form) + -ous suffix, after German paratom (F. Mohs Grundriss der Mineralogie (1824) II. 306; compare quot. 1825).

Mineralogy. Obsolete.

Of a mineral: exhibiting cleavage parallel to the primary plane; designating cleavage of this kind.

ΘΚΠ

the world > the earth > minerals > mineral structure or appearance > [adjective] > cleavage or fracture > having cleavage at particular angles

paratomous1825

orthotomous1861

orthoclastic1866

orthic1877

1825 W. Haidinger tr. F. Mohs Treat. Mineral. II. 269 Cleavage..sometimes P/2 from which the adjective paratomous has been derived.

1843 W. Humble Dict. Geol. Ankerite, Paratomous limestone..found in the mines of Styria.

1861 H. W. Bristow Gloss. Mineral. 273/2 Paratomous augite spar, Mohs. See Augite and Pyroxene. Paratomous kouphone spar, Mohs. See Harmotome.

This entry has been updated (OED Third Edition, June 2005; most recently modified version published online December 2020).

paratomousadj.²

Brit.

/pəˈratəməs/, U.S.

/pəˈrædəməs/

Origin: Formed within English, by derivation. Etymons: paratomy n., -ous suffix.

Etymology: < paratom- (in paratomy n.) + -ous suffix.

Zoology.

Of or relating to paratomy.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [adjective] > relating to asexual reproduction

sexless1757

paratomous1963

1963 R. P. Dales Annelids viii. 162 In this genus [sc. Trypanosyllis] a series may be traced from T. coeliaca, in which simple paratomous stolonization occurs.

1994 Biol. Bull. 186 63/1 Oceanic bipinnaria larvae of Luidia sp... reproduced asexually by paratomous cloning of the posterolateral larval arms.

2003 Jrnl. Environmental Radioactivity 66 141 Stimulation of paratomous division (asexual reproduction) was found in one species of worm.., and activation of sexual reproduction in the two other species studied.

This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).

单词	paratomous
释义	† paratomousadj.¹ Forms: 1800s paratomous, 1800s parotomous. Origin: A borrowing from Greek, combined with English elements; modelled on a German lexical item. Etymons: para- prefix¹, Greek -τόμος , -ous suffix. Etymology: < para- prefix¹ + ancient Greek -τόμος (see -tome comb. form) + -ous suffix, after German paratom (F. Mohs Grundriss der Mineralogie (1824) II. 306; compare quot. 1825). Mineralogy. Obsolete. Of a mineral: exhibiting cleavage parallel to the primary plane; designating cleavage of this kind. ΘΚΠ the world > the earth > minerals > mineral structure or appearance > [adjective] > cleavage or fracture > having cleavage at particular angles paratomous1825 orthotomous1861 orthoclastic1866 orthic1877 1825 W. Haidinger tr. F. Mohs Treat. Mineral. II. 269 Cleavage..sometimes P/2 from which the adjective paratomous has been derived. 1843 W. Humble Dict. Geol. Ankerite, Paratomous limestone..found in the mines of Styria. 1861 H. W. Bristow Gloss. Mineral. 273/2 Paratomous augite spar, Mohs. See Augite and Pyroxene. Paratomous kouphone spar, Mohs. See Harmotome. This entry has been updated (OED Third Edition, June 2005; most recently modified version published online December 2020). paratomousadj.² Brit. /pəˈratəməs/, U.S. /pəˈrædəməs/ Origin: Formed within English, by derivation. Etymons: paratomy n., -ous suffix. Etymology: < paratom- (in paratomy n.) + -ous suffix. Zoology. Of or relating to paratomy. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [adjective] > relating to asexual reproduction sexless1757 paratomous1963 1963 R. P. Dales Annelids viii. 162 In this genus [sc. Trypanosyllis] a series may be traced from T. coeliaca, in which simple paratomous stolonization occurs. 1994 Biol. Bull. 186 63/1 Oceanic bipinnaria larvae of Luidia sp... reproduced asexually by paratomous cloning of the posterolateral larval arms. 2003 Jrnl. Environmental Radioactivity 66 141 Stimulation of paratomous division (asexual reproduction) was found in one species of worm.., and activation of sexual reproduction in the two other species studied. This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022). < adj.¹1825adj.²1963
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† paratomousadj.1

paratomousadj.2

† paratomousadj.¹

paratomousadj.²