From the Oxford Words Blog:
One of the new words that reflects a change in technology in recent years, the noun bioprinting is defined as ‘the use of 3D printing technology with materials that incorporate viable living cells, e.g. to produce tissue for reconstructive surgery’. Bioprinter also enters our dictionary in this update; other new words from the sphere of technology include optogenetics, data scientist, and RDF.
The etymological journey to the noun vishing starts some distance away, with a sense of the word freak. This was respelled in phreaking, due to association with phone, to mean ‘the action of hacking into telecommunications systems, especially to obtain free calls’. This led (following the same pattern) to a respelling of fishing as phishing when meaning ‘the fraudulent practice of sending emails purporting to be from reputable companies in order to induce individuals to reveal personal information, such as passwords and credit card numbers, online’. Finally, vishing is the same practice via phone calls or voice messages (rather than email), and is a blend of voice and phishing.
Note: While the Oxford English Dictionary and OxfordDictionaries.com are both published by Oxford University Press they are very different especially when it comes to how and when words are added to the publications.
More about the differences here.