1. Someone who invests small amounts of money in startups.  The term's origin is from the 1920's, to describe a new investor in a new Broadway play.

2. A dream-maker. A world-changer. Our very favorite type of person, to be honest… ok maybe we’re a little biased.

Example sentence: If Wefunder is jam-packed with angel (investors), does that make this a little slice of heaven?