Breadcrumb Home > Thesaurus > A Synonyms of astrobiology Find synonyms for: Noun 1. exobiology, space biology, astrobiology, biology, biological science usage: the branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of astrobiology (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: sectarian Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language