Either of the two plates situated on the disk at the base of each ray of some starfish. / A radial graphite reflector surrounding a pressurized water reactor.

A town in Tyne and Wear, England, on the north bank of the Tyne.

physical barriers designed to provide protection from the effects of ionizing radiation, including radioactive material / the technology of providing such protection

A town in the Metropolitan Borough of South Tyneside, Tyne and Wear, in the Northeast of England.

Any of the American shield bugs, in the superfamily Pentatomoidea.

plural of shield bug

(dated) Scutum, a constellation in the northern sky.

The reduction in income taxes that results from taking an allowable deduction from taxable income.

(archaic, rare, nonstandard) A turtle or tortoise.

(space science) A shield designed of a substance that absorbs excessive heat from an outside source by either dissipating, reflecting or simply absorbing the heat.