sub-mainn.

Brit.

/ˈsʌbˌmeɪn/, U.S.

/ˈsəbˌmeɪn/

Origin: Formed within English, by derivation. Etymons: sub- prefix, main n.¹

Etymology: < sub- prefix + main n.¹

A subordinate or small channel, duct, or other main (main n.¹ 8); one connected to a larger principal main.

ΚΠ

1836 Farmer's Mag. Dec. 375/1 There should be a cross submain at the bottom of every field or stretch of drains.

1844 H. Stephens Bk. of Farm I. 564 A sub-main drain should be made along the lowest part of the hollow.

1914 C. J. Lynde Physics of Househ. v. 30 The water runs by gravity through the mains and submains to the houses, hydrants, etc.

1976 D. Macauley Underground 57 Several laterals are..connected to a submain, several submains to a main.

2003 N. N. Basak Environmental Engin. xiii. 125 A main line is taken from the reservoir along the main road. The sub-mains are taken suitably from the main line.

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

单词	sub-main
释义	sub-mainn. Brit. /ˈsʌbˌmeɪn/, U.S. /ˈsəbˌmeɪn/ Origin: Formed within English, by derivation. Etymons: sub- prefix, main n.¹ Etymology: < sub- prefix + main n.¹ A subordinate or small channel, duct, or other main (main n.¹ 8); one connected to a larger principal main. ΚΠ 1836 Farmer's Mag. Dec. 375/1 There should be a cross submain at the bottom of every field or stretch of drains. 1844 H. Stephens Bk. of Farm I. 564 A sub-main drain should be made along the lowest part of the hollow. 1914 C. J. Lynde Physics of Househ. v. 30 The water runs by gravity through the mains and submains to the houses, hydrants, etc. 1976 D. Macauley Underground 57 Several laterals are..connected to a submain, several submains to a main. 2003 N. N. Basak Environmental Engin. xiii. 125 A main line is taken from the reservoir along the main road. The sub-mains are taken suitably from the main line. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). < n.1836
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