| ACE | the ace in the heart suit |
|---|---|
| ACE | the ace of spades |
| ACE | an oral beta blocker (trade name Sectral) used in treating hypertension |
| ACE | apathy and inactivity in the practice of virtue (personified as one of the deadly sins) |
| ACE | not made up of or divided into cells |
| ACE | a slime mold of the class Myxomycetes |
| ACE | not centered or having no center |
| ACE | lacking a centromere |
| ACE | a chromosome lacking a centromere |
| ACE | absence of the head (as in the development of some monsters) |
| ACE | absence of the head (as in the development of some monsters) |
| ACE | (biology) lacking a head or a clearly defined head |