We found 2 dictionaries that define the word alien species:

General (1 matching dictionary)

1. Alien species: Wikipedia, the Free Encyclopedia

Science (1 matching dictionary)

2. Biodiversity (No longer online)

Phrases: 100 of the World's Worst Invasive Alien Species, more... ▸ Words similar to alien species ▸ Usage examples for alien species ▸ Idioms related to alien species ▸ Wikipedia articles (New!) ▸ Words that often appear near alien species ▸ Rhymes of alien species ▸ Invented words related to alien species