3. felt or enjoyed through imagined participation in the experience of others: a vicarious thrill. 4. Physiol. noting or pertaining to a situation in which one organ performs part of the functions normally performed by another. vicÄrius derivative of vic(is) alternation (see vice 3)]. viâ¢carâ²iâ¢ousâ¢ly, adv.
Taxpayer Identification Numbers (TIN) A Taxpayer Identification Number (TIN) is an identification number used by the Internal Revenue Service (IRS) in the administration of tax laws. It is issued either by the Social Security Administration (SSA) or by the IRS. A Social Security number (SSN) is issued by the SSA whereas all other TINs are issued by the IRS.
tin. 1  Chemistry. a low-melting, malleable, ductile metallic element nearly approaching silver in color and luster: used in plating and in making alloys, tinfoil, and soft solders. 2  tin plate. 3  any shallow pan, especially one used in baking. 4  any pot, box, can, or other container or vessel made of tin or tin plate. 5  Squash.