Definition of "phantom" in English

noun

1. A ghost or apparition.

2. Something apparently seen, heard, or sensed, but having no physical reality; an image that appears only in the mind; an illusion or delusion.

3. (bridge) A placeholder for a pair of players when there are an odd number of pairs playing.

4. (medical imaging) A test object that reproduces the characteristics of human tissue.

5. (colloquial, uncountable) Short for phantom power

adjective

1. Illusive.

2. Fictitious or nonexistent.

   • a phantom limb