First was
bitcoinSecond was
cryptocurrenyNow they listed "satoshi" and defined it as:
a satoshi is the smallest monetary unit in the Bitcoin cryptocurrency, and is named after Satoshi Nakamoto, theprobably pseudonymousdeveloper(s) of Bitcoin.
I'm not sure if there would be any impact on bitcoin's popularity but it's good that the word has been acknowledged although I think it's a bit late.
I can't imagine it'll have any real impact. People don't look to dictionaries for deciding which investments to make.
It's a cool acknowledgement, though, and really shows how far we've come in terms of going mainstream. It's also a small victory for those hoping to see bitcoins become a legitimate unit of account.