1. A jiffy (sense 1). 2. In simulations, the discrete unit of time that passes between iterations of the simulation mechanism. In AI applications, this amount of time is often left unspecified, since the only constraint of interest is the ordering of events. This sort of AI simulation is often pejoratively referred to as "tick-tick-tick" simulation, especially when the issue of simultaneity of events with long, independent chains of causes is handwaved. 3. In the FORTH language, a single quote character.

(01 Jul 2002)

<zoology> Any one of numerous species of large parasitic mites which attach themselves to, and suck the blood of, cattle, dogs, and many other animals. When filled with blood they become ovate, much swollen, and usually livid red in colour. Some of the species often attach themselves to the human body. The young are active and have at first but six legs.

Any one of several species of dipterous insects having a flattened and usually wingless body, as the bird ticks (see under Bird) and sheep tick (see under Sheep). Tick bean, a small bean used for feeding horses and other animals.

<botany> Tick trefoil, a name given to many plants of the leguminous genus Desmodium, which have trifoliate leaves, and joined pods roughened with minute hooked hairs by which the joints adhere to clothing and to the fleece of sheep.

3. <zoology> The whinchat; so called from its note. Death tick.

(01 Mar 1998)

tic disorders, tic douloureux, tichorrhine, tick < Prev | Next > tick-borne disease, tick-borne diseases

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