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mattoid

British  
/ ˈmætɔɪd /

noun

  1. rare  a person displaying eccentric behaviour and mental characteristics that approach the psychotic

"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

Etymology

Origin of mattoid

C19: from Italian, from matto insane

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And if a mattoid emperor caused the war, And Elenor Murrays put the emperor down, The emperor, could he laugh at all, can laugh To see a country, bent to spend its last Dollar, its blood to the last drop, having spent Enough of these, go mad as Barrett Bays.

From Project Gutenberg

I thought at first you were a mattoid, but you're so amazingly consistent.

From Project Gutenberg

"That man," said the Doctor in a low, earnest voice, "is a mattoid."

From Project Gutenberg

And labyrinths of Horror's Home, 'Mid vapours green and aisles unsunned, Provoke each cursing mattoid's fold Until the night is changed to noon By cowled magicians on a dome.

From Project Gutenberg

His biographer says that he was a "mattoid."

From Project Gutenberg