What does "aerobe" mean?

Any organism (but especially a bacterium) that can tolerate the presence of oxygen, or that needs oxygen to survive.

Aerobe

Common synonyms include: aerobic bacterium, aerobic organism, aerophile, air breathing organism, amebic, amoeba.

/ˈɛː.rəʊb/ noun

noun ·Rare ·Advanced level

Noun

1
Any organism (but especially a bacterium) that can tolerate the presence of oxygen, or that needs oxygen to survive.
2
an organism (especially a bacterium) that requires air or free oxygen for life wordnet

From French aérobie. By surface analysis, aero- + -obe.