AVOIRDUPOIS', noun s as z. [See Poise.] A weight, of which a pound contains 16 ounces. Its proportion to a pound Troy is as 17 to 14. this is the weight for the larger and coarser commodities, as hay, iron, cheese, groceries, etc.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI