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1.
a wonderful mother who is protective, but in a good way. she acts like a mother bear in all senses of the word; caring, protective, helpful, loving, powerful, strong, a refuge of sorts.
my mother has been acting alot like a mommabear lately, it's a nice change!
by hoffmannnnnn January 10, 2010
 
2.
An endearing term. A cuddly, happy mom that is truly loved.
how's the momma bear doin?
by hellooperator123987 January 08, 2011
 
3.
An extroverted female (usually a virgin) who is the top dog and caregiver within social circles and is friends with many guys but does not seek a relationship or casual relations.
Ben- "You still trying to get with Momma Bear?"

Jerry- "Yea... She's nice, but she just don't put out!"
by SpenceHence May 26, 2009