Wiktionary
apxs
init. (context space science NASA English) (initialism of w:Alpha particle X-ray spectrometer Alpha-particle X-ray spectrometer English) (gloss It is a scientific instrument of the http://en.wikipedia.org/wiki/Mars%20Science%20Laboratory onboard the Curiosity ''Curiosity'' rover at http://en.wikipedia.org/wiki/Mars.)