Britney Spears is freeing the nipple, in the dining room no less ... and she's back with another revealing dancing video.

Check out this latest in a long line of Britney specials ... she's getting down and doing some dirty dancing in front of her dining room table.

Britney posted the footage on her Instagram, and there are even a few slips of the nipple ... but she is covering the goods with a ❤️ emoji.

This is par for the course from Britney ... it was just a few days ago that she showed the world her butt cheeks in a nude beach photo.

Britney's got 200 million reasons to dance ... as we first reported, she recently sold her rights to her music catalog to Primary Wave in a move our sources called a "landmark deal," with estimates hovering around $200 million.