Wordnet 3.0
ADVERB (1)
1. 
 and others ('et al.' is used as an abbreviation of `et alii' (masculine plural) or `et aliae' (feminine plural) or `et alia' (neuter plural) when referring to a number of people); 
- Example: "the data reported by Smith et al."[syn: et al., et al, et alii, et aliae, et alia]
WordNet (r) 3.0 (2006):
et aliae
    adv 1: and others ('et al.' is used as an abbreviation of `et
           alii' (masculine plural) or `et aliae' (feminine plural)
           or `et alia' (neuter plural) when referring to a number
           of people); "the data reported by Smith et al." [syn: et
           al., et al, et alii, et aliae, et alia]