brainlet

Noun

1. A subcomponent of a brain or thinking system.
   • Let's call these five smaller brain units, brainlets: […] Each brainlet is found in a specific part of your thinking brain. - 2008, D. Brooklyn, The Black Son: What Makes You Tick, page 179:
   • The Prof brainlet is the IT brainlet. The Prof embraces pure logic without the “messiness” of emotion or instinct. To The Prof, everything is objective and impersonal. - 2010, Meryl Runion, How to Restore Sanity to Our...
2. The cerebellum.
3. A small brain; the brain of someone or something small or of someone who is not very intelligent.
   • ...viz. the railway : an invention which is so thoroughly English that, even supposing it likely to have occurred to any slow Prussian brainlet, it would still have been impossible to have found any other nation...
   • But a shade of bygone sorrow, Like a dream upon the morrow, Round his tiny brainlet clinging, Sets the wee cock ever singing, - 1884, The Eclectic Magazine of Foreign Literature, Science, and Art:
   • Then the blows came fast and heavy on his center-parted hair. Till his soft and tender brainlet was exposed unto the air—Ceased she not her work gymnastic till she sealed the masher's doom. - 1890, Locomotive Firemen's...
4. A dolt; a fool; someone having a small brain.
   • Still, we have in this country Whig writers—that is, party Whig writers, of the regular party guage, assuring the other little brainlets who believe their writings, that Ruskin is an author of equivalent genius to...
   • I think he told Claudine the same thing when they met, and convinced the tiny brainlet of his sincerity. - 1905, Booth Tarkington, The conquest of Canaan: a novel, page 254: