You searched for: “ci
curie, Ci
1. The basic unit of radioactivity.

Named after Marie Curie, it is equal to the radioactivity emitted by a gram of radium, or 37 billion disintegrations per second. The Three Mile Island nuclear accident released about 50 curies.

2. A former unit of radioactivity, equal to 3.7 x 1010 becquerels (radioactive disintegrations).

One gram of radium has a radioactivity of about one curie.

This entry is located in the following units: Measurements and Mathematics Terms (page 5) Ocean and Deep Sea Terms (page 2)
Word Entries containing the term: “ci
ci-devant (adjective) (not comparable)
Applied to a person with reference to an office or a position which he or she no longer occupies: The school's ci-devant, or retired, principal is spending a lot of time traveling with his family.
A recent or previous person who was in a position but is now retired.
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This entry is located in the following units: English Words in Action, Group C (page 4) Words of French origin (page 2)