A prefix to names of chemical compounds, signifying the presence of acetic acid or acetyl radical.(noun)
The Century Dictionary (Public Domain)
Use "aceto" in a sentence
"The concentrated cotto mosto is then inoculated with a "mother of vinegar", a batch of vinegar alive with a culture of aceto-bacteria."
"This would prevent the aceto bacterias from getting in there and turning my mash into apple cider vinegar, and it would keep out undesirable yeasts as well."
"The highest quality aceto balsamico is closer to a condiment than a normal vinegar and needs no herbs or spices to make its flavor shine."