"the main definition"
What did I say about being too caught up in definitions again? Also, no. The "feeling" aspect of it is present in Netorare. Actually, much more. Since Netorase is actively sharing your partner to others. That one, however, does require some sort of relationship beforehand, mechanically speaking. Netori is being in the perspective of the one "stealing." They're all different fantasies for different types of people.
Netorare is about the gut-wrenching feeling of someone you desire gets "taken" from you. Humiliation, jealousy, and, at times, rage.
Netorase is having others desiring that someone, and them acting on it. Hotwifing, basically. The fantasy is the openness of it. The "reclaiming" part is a frequent addition to that, too, though not necessarily.
Netori is the fantasy of "taking" that from someone else.
There are overlap at times. There are Netorase that devolves to Netorare. Big surprise. And there are Netorase who fantasize the Netorare aspect of it. Netori and Netorare's connection is obvious. But they're all different things.
But, yeah, as someone who's been in too much internet to actually know these things, here are the "definitions" you can use if you're really set on having one. Ones that are actually accurate to what they represent.