Hypertext Webster Gateway: "sone"
From WordNet (r) 1.7 (wn)
sone
n : a unit of perceived loudness equal to the loudness of a
1000-hertz tone at 40 dB above threshold
Additional Hypertext Webster Gateway Lookup
Gateway by dict@stokkie.net
stock only wrote the gateway and does not have any control over the contents;
see the Webster Gateway FAQ,
and also the Back-end/database links and credits.