The most common and most likely answer to this crossword clue is the 6 letter word AEROBE which also is the latest solution we found used in Washington Post in 2002.
Oxygen-dependent critter crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| AEROBE | 100 % | 6 | 
Words with a meaning similar to the clue: Oxygen-dependent critter
These words may or may not be a possible solution to this crosswords clue.- aerobe
 - aerobic
 - dragon
 - seal
 - alien
 - ape
 - bear
 - boa
 - crab
 - lamb
 - duck
 - aerate
 
Crossword Answer definitions
AEROBE noun- Any organism (but especially a bacterium) that can tolerate the presence of oxygen, or that needs oxygen to survive.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution