Final answer:
A slot time in an 802.11 wireless LAN is the duration of a pause between data transmissions. It helps prevent collisions and ensures smooth data transfers.
Step-by-step explanation:
A slot time in an 802.11 wireless local area network (LAN) refers to the duration of a pause between data transmissions in the network. It is the time that a wireless device has to wait before it can transmit data again after a previous transmission. Slot times are used to avoid collisions in wireless communications and ensure smooth data transfers.