I would think a true minimum set of bootstrapping words would be enough to teach the language to hypothetical aliens who might not have access to a group of humans to poll about handedness.
Put another way, how can we know that aliens won't reconstruct an electromagnetic message as a mirror image of what we sent?
Because CP-violation is actually the only detectable way to discern between right handedness and left handedness. That is, without CPv, we would have no way to know that we aren't in a hypothetical mirror universe with all rotations reversed. Every other physical interaction behaves identically left or right.
So we have a few options to deal with our rotationally-challenged alien friends:
1. Hope they can parse far down enough into the dictionary to understand what CP is and either know it or can test it.
2. Communicate using a shared reference, like pointing out two quasars that rotate relative to each other. (Quasars are pretty good galactic reference points.)
3. As long as it doesn't affect giving directions, just don't worry about it, the physics works out the same. If we ever meet and they try to shake our left hand, well, they get their very own "oops I guess electrons are negative then" situation. "And that, kids, is why you always negate earth-radians before using them in a formula."
Veritasium makes a great video about symmetries that's very relevant here [2], and might suggest a slightly more practical way to correctly communicate handedness to aliens. The full CP violation experiment isn't necessary, as long as we assume that the aliens live in a universe made of mostly matter (as opposed to antimatter) like ours, and we can communicate the parity violation experiment (~measuring the preferential atomic decay direction of cobalt atoms near 0K in a magnetic field [3]), they should be able to reconstruct an absolute reference for rotation.
[1]: https://en.wikipedia.org/wiki/L-Glucose
[2]: https://www.youtube.com/watch?v=yArprk0q9eE
[3]: http://www.physics.utah.edu/~belz/phys5110/PhysRev.104.254.p...
Of or pertaining to that side of the body in man on which the muscular action is usually stronger than on the other side; -- opposed to left when used in reference to a part of the body; as, the right side, hand, arm. Also applied to the corresponding side of the lower animals.
http://www.dict.org/bin/Dict?Form=Dict2&Database=*&Query=rig...
Such a list would be great to have for many reasons actually.
Later efforts (for attributed grammars, semantic networks, etc.) used many more primitives. Semantic primitive / "Interlingua" based formalisms never quite caught on for the most part, however.
the <"X---" == left> and <"---X" == right> example is an example of an analogical representation -- these have sensorimotor/perceptual groundings and mimic how we actually learn some concepts, but although there has been some research in AI in utilizing analogical representations internally, it is not typical.
It links to definitions for some sub-concepts (e.g. containing or heart) but oddly enough not others (e.g. body), I'm guessing because body is part of the core 360 words.