noun

• (medicine) An instrument used to temporarily shut off blood vessels, etc.
• (UK) A parking enforcement device used to immobilise a car until it can be towed or a fine is paid; a wheel clamp.
• (agriculture) A compact pile of agricultural produce (such as root vegetables or silage) used for temporary storage (often covered with straw, earth, or both).
• (electronics) An electronic circuit that fixes either the positive or the negative peak excursions of a signal to a defined value by shifting its DC value.

verb

• (transitive, intransitive) To fasten in place or together with (or as if with) a clamp.
  "As we burst into the room, the Count turned his face, and the hellish look that I had heard described seemed to leap into it. His eyes flamed red with devilish passion. The great nostrils of the white aquiline nose opened wide and quivered at the edge, and the white sharp teeth, behind the full lips of the blood dripping mouth, clamped together like those of a wild beast."
• (transitive) To hold or grip tightly.
• (transitive) To modify (a numeric value) so it lies within a specific range by replacing values outside the range with the closest value within the range.
  "After the depth range is clamped, the depth value is read from the depth stencil buffer, and the two values are compared with a selectable depth-comparison function […]"
• (UK, obsolete, transitive) To cover (vegetables, etc.) with earth.

noun

• (dated) A heavy footstep; a tramp.

verb

• (intransitive, dated) To tread heavily or clumsily; to clump or clomp.
  "the policeman with clamping feet"