from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various small clawed monkeys of the genera Callithrix and Cebuella, found in tropical forests of the Americas and having soft dense fur, tufted ears, and long tails.
from the GNU version of the Collaborative International Dictionary of English
- n. Any one of numerous species of small South American monkeys of the genera Hapale and Midas, family Hapalidæ. They have long soft fur, and a hairy, nonprehensile tail. They are often kept as pets. Called also squirrel monkey.
from The Century Dictionary and Cyclopedia
- n. A little ape or monkey.
- n. Now, specifically, a small squirrel-like South American monkey of the family Hapalidæ, or Mididæ (which see for technical characters).
- n. An ugly little fellow; a conceited “puppy.”
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. small soft-furred South American and Central American monkey with claws instead of nails
Middle English marmusette, a kind of small monkey, from Old French marmouset, grotesque figurine, alteration (influenced by marmouser, to murmur) of marmotte, marmot; see marmot.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle French marmouset ("gargoyle; small child"), probably from marmouser ("to mumble"). (Wiktionary)