TIC

n. involuntary twitch of the facial muscles, facial twitch

Tic may also refer to Tenancy in Common.A tic is a sudden, repetitive, stereotyped, nonrhythmic movement (motor tic) or sound (phonic tic) that involves discrete groups of muscles. Tics can be invisible to the observer (e.g.; abdominal tensing or toe crunching). Movements of other movement disorders (e.g.; chorea, dystonia, myoclonus) must be distinguished from tics. Other conditions (e.g.; autism, stereotypic movement disorder) also include movements which may be confused with tics. Tics must also be distinguished from compulsions of OCD and seizure activity.
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A concurrent estate or co-tenancy is a concept in property law, particularly derived from the common law of real property, which describes the various ways in which property can be owned by more than one person at a given time. The parties who own property jointly are referred to as co-tenants or joint tenants. Most common-law jurisdictions recognize three kinds of concurrent estate: tenancy in common, joint tenancy with right of survivorship, and tenancy by the entirety. Many jurisdictions simply refer to a joint tenancy with right of survivorship as a joint tenancy, but a few U.S. States treat the phrase joint tenancy as synonymous with a tenancy in common.
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Titanium carbide, Ti C, is an extremely hard refractory ceramic material, similar to tungsten carbide.It is commercially used in tool bits cutting tools. It has the appearance of black powder with NaCl-type face centered cubic crystal structure. It is mainly used in preparation of cermets, which are frequently used to machine steel materials at high cutting speed.The resistance to wear, corrosion, and oxidation of a tungsten carbide-cobalt material can be increased by adding 6-30% of titanium carbide to tungsten carbide. This forms a solid solution that is more brittle and susceptible to breakage than the original material.
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Tic [Fr.] an involuntary, compulsive, rapid, repetitive, stereotyped movement or vocalization, experienced as irresistible although it can be [more]Tic - Community and Resources

Noun
1. a local and habitual twitching especially in the face
(hypernym) twitch, twitching, vellication

n. tic, involuntary twitch of the facial muscles, twitch