Voltage-gated calcium channel
Voltage-gated calcium channels (VGCCs), also known as voltage-dependent calcium channels (VDCCs), are a group of voltage-gated ion channels found in the membrane of excitable cells (e.g. muscle, glial cells, neurons) which are permeable to calcium ion Ca2+.
Source: Wikipedia — Voltage-gated calcium channel (CC BY-SA 4.0)