neaxixaloyan.

Headword: 
neaxixaloyan.
Principal English Translation: 

the urethra, hollow tube through which urine leaves the body (see Molina)

IPAspelling: 
neɑːʃiːʃɑloːjɑn
Alonso de Molina: 

neaxixaloyan. meadero, lugar donde mean.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 064r. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

See the Digital Florentine Codex for an illustration of a treatment for neaxixtzacualiztli, a urinary obstruction.