the bladder; or, a swelling or blister full of liquid (see Molina)
Orthographic Variants:
aquaqualaquiztli
Alonso de Molina:
aquaqualaquiztli. bexiga, o hinchazon llena de aguaza. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 7r. col. 2. Thanks to Joe Campbell for providing the transcription.