(Homonym: tic).
1. A light mattress.
2. A metallic tapping sound; SYN. ticking.
3. Cover of a mattress or pillow.

1. To make a sound like a clock or a timer; SYN. ticktock, ticktack, beat.
2. To sew, as of mattresses; SYN. retick.

1. A regular, rapidly recurring signal emitted by a clocking circuit; also, the interrupt generated by this signal.
2. In some microcomputer systems, notably Macintosh, one sixtieth of a second, the basic time unit used by the internal clock that is accessible by programs.

Any of two families of small parasitic arachnids with barbed proboscis; feed on blood of warm-blooded animals.
Any of an arachnid group (Ixodoidea) of large bloodsucking mites. Many carry and transmit diseases to mammals (including humans) and birds.