So, I wanted to use the following symbol in a design.

But I have no idea what it's called (if it has a name), or how to describe it in words. Verithrax said it would be classified as a Borromean Ichthys, but given the nature of Borromean shapes, that could mean a large number of different things, and would not convey the fact that it is composed of only one line (though this point is trivial).

So, if anyone has any idea what to call it, or a way to describe it in a not-too-wordy way (It is in no way supposed to be the focus of the design), then please speak up.

I think it's called a triquetra, or something like that. Correct me if I'm wrong though.

Afraid not. A Triquetra is:

It's sort of related. This complimentary Wikipedia article sort of shows it as part of the "Flower of Life".

http://en.wikipedia.org/wiki/Flower_of_Life

Verithrax's name comes in that, but I'm not sure that particular variant has a particular name.

Maybe you could call it a "Concave Triquerta"--that's the best I could do in a brief description. Or "half of the seed of life". It's probably gonna be a bit awkward to say.

While I can't find my reference for it - it could be a triquetra (well, inverted) - one of the versions of Hrungnir's heart that flows rather than being divided as it is more typically depicted (though the symbol is taken to either be a triquetra, or valknut).

So there's that half a cent while I search for where I had originally been coming across it.

It's a triquetra, with the difference that imaginary circles that form it are farther apart, and that the blank area forms a triangle, instead of the area where three circles overlap.

Edit: so, a variation of triquetra. Though it may have it's own name, I can't be certain it hasn't.

I believe the technical term for this is "doohickey"