subtrenchn.

Brit.

/ˈsʌbtrɛn(t)ʃ/, U.S.

/ˈsəbˌtrɛn(t)ʃ/

Origin: Formed within English, by derivation. Etymons: sub- prefix, trench n.

Etymology: < sub- prefix + trench n.

Chiefly Engineering.

A trench dug within another trench; a secondary or subsidiary trench.

ΘΚΠ

society > armed hostility > defence > defensive work(s) > earthwork or rampart > [noun]

wallc900

banka1387

aggera1398

trench1445

braye1512

mantle-walla1522

werewalla1525

rampire1548

rampart1550

mound1558

mount1558

argin1589

vallie1602

earthwork1633

circumvallation1645

vallation1664

subtrench1669

epaulement1687

enceinte1708

ring1780

vallum1803

main-work1833

the world > food and drink > farming > cultivation or tillage > preparation of land or soil > ditching or drainage > [noun] > ditch > specific types of ditch

draw dike1488

lockspit1658

subtrench1669

watering1790

bottom1883

1669 P. Staynred Compend. Fortification 7 in S. Sturmy Mariners Mag. efgh is the Subtrench.

1898 A. P. Folwell Sewerage ix. 210 The space between the pipes and the sides of the sub-trench shall then be carefully filled with broken stone or gravel.

1919 Jrnl. Engin. (Univ. Colorado) 16 59 The contract called..for a sub-trench..in the bottom of the main trench.

2001 S. M. Levy Constr. Site Work iii. 136 The pipe can be installed in a narrow subtrench excavated at the bottom of the wider trench to avoid increase in the backfill load.

This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).

† subtrenchv.

Origin: Formed within English, by derivation. Etymons: sub- prefix, trench v.

Etymology: < sub- prefix + trench v. In sense 1 after subtrench n.

Obsolete. Chiefly in passive.

1. transitive. To provide with a subtrench. rare.

ΚΠ

1669 P. Staynred Compend. Fortification 7 in S. Sturmy Mariners Mag. Section of a Fort with a..Counterscarp; also Subtrenched.

2. transitive. Agriculture and Horticulture. To dig a series of trenches in (an area of ground) in order to loosen the subsoil. Cf. trench v. 3b.

ΚΠ

1798 W. Nicol Sc. Forcing Gardener (ed. 2) ii. iv. 222 The land should be trenched or sub-trenched to the depth of eighteen inches at least, and well broke in the operation.

1812 W. Nicol & E. Sang Planter's Kalendar 24 It was thought sufficient to subtrench the ground, preparatory to planting out seedlings.

1851 Lloyd's Weekly Newspaper 13 Apr. 8/3 The ground should be sub-trenched and well broken.

This entry has been updated (OED Third Edition, June 2012; most recently modified version published online September 2018).

单词	subtrench
释义	subtrenchn. Brit. /ˈsʌbtrɛn(t)ʃ/, U.S. /ˈsəbˌtrɛn(t)ʃ/ Origin: Formed within English, by derivation. Etymons: sub- prefix, trench n. Etymology: < sub- prefix + trench n. Chiefly Engineering. A trench dug within another trench; a secondary or subsidiary trench. ΘΚΠ society > armed hostility > defence > defensive work(s) > earthwork or rampart > [noun] wallc900 banka1387 aggera1398 trench1445 braye1512 mantle-walla1522 werewalla1525 rampire1548 rampart1550 mound1558 mount1558 argin1589 vallie1602 earthwork1633 circumvallation1645 vallation1664 subtrench1669 epaulement1687 enceinte1708 ring1780 vallum1803 main-work1833 the world > food and drink > farming > cultivation or tillage > preparation of land or soil > ditching or drainage > [noun] > ditch > specific types of ditch draw dike1488 lockspit1658 subtrench1669 watering1790 bottom1883 1669 P. Staynred Compend. Fortification 7 in S. Sturmy Mariners Mag. efgh is the Subtrench. 1898 A. P. Folwell Sewerage ix. 210 The space between the pipes and the sides of the sub-trench shall then be carefully filled with broken stone or gravel. 1919 Jrnl. Engin. (Univ. Colorado) 16 59 The contract called..for a sub-trench..in the bottom of the main trench. 2001 S. M. Levy Constr. Site Work iii. 136 The pipe can be installed in a narrow subtrench excavated at the bottom of the wider trench to avoid increase in the backfill load. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). † subtrenchv. Origin: Formed within English, by derivation. Etymons: sub- prefix, trench v. Etymology: < sub- prefix + trench v. In sense 1 after subtrench n. Obsolete. Chiefly in passive. 1. transitive. To provide with a subtrench. rare. ΚΠ 1669 P. Staynred Compend. Fortification 7 in S. Sturmy Mariners Mag. Section of a Fort with a..Counterscarp; also Subtrenched. 2. transitive. Agriculture and Horticulture. To dig a series of trenches in (an area of ground) in order to loosen the subsoil. Cf. trench v. 3b. ΚΠ 1798 W. Nicol Sc. Forcing Gardener (ed. 2) ii. iv. 222 The land should be trenched or sub-trenched to the depth of eighteen inches at least, and well broke in the operation. 1812 W. Nicol & E. Sang Planter's Kalendar 24 It was thought sufficient to subtrench the ground, preparatory to planting out seedlings. 1851 Lloyd's Weekly Newspaper 13 Apr. 8/3 The ground should be sub-trenched and well broken. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online September 2018). < n.1669v.1669
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