intellectual capacity; mental ability.
people with superior mental abilities:
an emergency medical conference of all available brainpower.
The New Activism Tom Watson November 4, 2009
Rachel Maddow Seizes Her Moment at Post-Keith Olbermann MSNBC Howard Kurtz February 26, 2011
The Crisis We Forgot Tony Blair March 2, 2009
Voting For Yair Lapid, Israel’s Maimonides Rabbi Daniel Landes February 3, 2013
Complete State of the Union Addresses from 1790 to 2006 Various
The Boy and the Sunday School John L. Alexander
Beacon Lights of History, Volume XI John Lord
intelligence; mental ability
a scintigram of the brain, used to estimate cerebral blood flow and to detect brain tumors. Contemporary Examples Can Daniel Amen Read Your Mind? Eliza Shapiro December 13, 2012
brain sand Historical Examples The Mystery of Space Robert T. Browne Genuine Mediumship or The Invisible Powers Bhakta Vishita Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 Various
insane; crazy; mad. Historical Examples The History of England from the Accession of James II. Thomas Babington Macaulay The Book of Susan Lee Wilson Dodd Past and Present Thomas Carlyle adjective relating to or caused by insanity; crazy; mad
Hit someone hard on the head. For example, The roof collapsed and a bunk of plaster brained him, or I’ll brain you if you don’t get to those dishes! This term is used both literally (first example) and hyperbolically (second example). [ ; 1930s ]