Google Search: define:et al

I wish I knew some latin. Type in 'define:et al' in google's search engine and you will see the consensus is that it is an abbreviation that means "and others". You will also see that it could be an abbreviation for a number of things, including:

• et alia
• et alter Update: this link is now the only one on this page that is not broken
• et alius
  
• et alii(masculine plural)
• et aliae (feminine plural)
• et alia (neutral plural) when referring to a number of people
• et alibi Update: When refering to other occurences in a text

Google Search: define:et al

Do any authorities on latin grammar want to weigh in on this? This is why legalese can be so confusing? Latin schmatin!