phantom:1

noun
phan*tom \ ˈfan-təm \
14th century{ds||1|a|}
  • something apparent to sense but with no substantial existence : apparition
  • something elusive or visionary
  • an object of continual dread or abhorrence

phantom:2

adjective
phantom \
15th century{ds||1||}
  • of the nature of, suggesting, or being a phantom : illusory
  • fictitious, dummy

phantom limb

noun
phantom limb \
1871
  • an often painful sensation of the presence of a limb that has been amputated —called also phantom pain

phantom pregnancy

noun
phantom pregnancy \
  • a medical condition in which a woman believes that she is pregnant and can appear to be pregnant when she is not pregnant
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