11-Letter Words Starting with I

One who richly decorates manuscripts

Flagg or Rockwell, for example

Norman Rockwell, for example

Provider of pictures

""IMMOBILIZE To make immovable; in surgery, to make immovable (a naturally mobile part, as a joint) by the use of splints, or stiffened bandages.""

Implement

""IMPLEMENT That which fulfills or supplies a want or use; esp., an instrument, toll, or utensil, as supplying a requisite to an end; as, the implements of trade, of husbandry, or of war. as, the implements of trade, of husbandry, or of war.""

Secret penetrator of an organisation

Bats flit in with friend of Badger or Mole (wordplay)

INSUFFLATE To blow upon; to breath upon or into; to use insufflation upon.

Item that improves turbo engine performance

Interdeal

""Contained between lines; written or inserted between lines already written or printed; containing interlineations; as, an interlinear manuscript, translation, etc.as, an interlinear manuscript, translation, etc.""

Situated or occurring within the eyeball: intraocular pressure.

""INVALIDATE To render invalid; to weaken or lessen the force of; to destroy the authority of; to render of no force or effect; to overthrow; as, to invalidate an agreement or argument. as, to invalidate an agreement or argument.""

Proctor at an English school exam

Supervisor of those working on paper