Lewis base

Paperback publishers distributed their titles in African-American neighborhoods because it expanded their market base.
How Pulp Fiction Saved Literature|Wendy Smith|January 8, 2015|DAILY BEAST
If ISIS “came into a base and killed hundreds of troops, then people would ask a lot more questions.”
Pentagon Doesn’t Know How Many People It’s Killed in the ISIS War|Nancy A. Youssef|January 7, 2015|DAILY BEAST
Huckabee will also need to establish a reliable fundraising base, something that up until now has proved to be elusive.
Can Huckabee Convert the GOP’s Moneymen?|Lloyd Green|January 4, 2015|DAILY BEAST
Both are considered marginal figures in the House GOP caucus and have no real base of support for their respective bids.
The YOLO Caucus' New Cry for Attention|Ben Jacobs|January 4, 2015|DAILY BEAST

In the weeks following the Sept. 9, car bombing at the Iranian base, Iran raided a village in the Pakistani district of Chagai.
The Dangerous Drug-Funded Secret War Between Iran and Pakistan|Umar Farooq|December 29, 2014|DAILY BEAST
The upper part of the stem is usually unbranched, but whorls of branches occur towards the base.
How to Know the Ferns|S. Leonard Bastin
It is a vile world because it is an under-educated world, unreasonable, suspicious, base and ferocious.
The Salvaging Of Civilisation|H. G. (Herbert George) Wells
In ordinary work, however, it is safer to base the distinction upon size than upon structure.
A Manual of Clinical Diagnosis|James Campbell Todd
Mr. King and Mr. Lewis walking together in Birmingham, a chimney sweeper and his boy passed them.
The Book of Anecdotes and Budget of Fun;|Various
If he married that base-born creature Dorothy, no respectable person would ever enter the house.
The World Before Them|Susanna Moodie

British Dictionary definitions for Lewis base

Lewis base

noun

a substance capable of donating a pair of electrons to an acid to form a covalent bondCompare Lewis acid

Word Origin for Lewis base

C20: named after G. N. Lewis (1875–1946), US chemist

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012