1. A small slit (as for inserting a coin or depositing mail).
2. A small opening in which anything may be inserted
3. A position in a grammatical linguistic construction in which a variety of alternative units are interchangeable
4. (Computers) A socket in a microcomputer that will accept a plug-in circuit board; SYN. expansion slot.
5. A slot machine that is used for gambling; SYN. one-armed bandit.
6. The trail of an animal (especially a deer).

1. See expansion slot.
2. An integrated circuit mounting connector designed to connect a microprocessor with a PC’s data bus. Currently, only newer models of Intel’s Pentium family employ this. See also Pentium, Slot 1, Slot 2.

To assign a time slot