Okay, C, D, and F. What you have is a major 2nd with a perfect 4th. The nearest you can come to putting a chord designation to it is to say that it's an implied D minor 7th (missing 5th) in second inversion.

I'm assuming that you want to communicate in a meaningful manner with trained musicians in the language that trained musicians use. "Chord" means something specific. It has many variations and permutations, but the basic definition is what it is.

You can "stick a feather in your cap and call it macaroni" if you want, but you'll have a real hard time convincing the camp cook to mix it with cheese and serve it.

Don Firth