You searched for: “c
c., circa
Approximately, when referring to a date; literally, it means "around a certain date".
This entry is located in the following unit: Archeology, Archaeology (page 2)
coulomb, C
An SI unit of electrical charge.

One coulomb is the quantity of electricity conveyed by a current of one ampere in one second.

This entry is located in the following unit: Measurements and Mathematics Terms (page 5)
degree, °C
Symbol for degrees Celsius; sometimes, called centigrade.
This entry is located in the following unit: Measurements and Mathematics Terms (page 5)