1. Plural of coma; a state of deep unconsciousness from which a person cannot be awakened.
Usage: medical; plural form
2. Plural of coma; in astronomy, the luminous envelope of gas and dust surrounding the nucleus of a comet.
Usage: astronomy; plural form

Examples

• The patients in comae required constant medical monitoring and care.
• Several comae were observed around the nuclei of the approaching comets.
• Doctors worked to bring the accident victims out of their comae.
• The bright comae of the comets were visible through the telescope.
• Long-term comae can result from severe head injuries or illness.