13-Letter Words Containing: D,U,L,U

• A group of four things.

• without qualification or limitation

• any four copies; any of four things that correspond to one another exactly

• having four units or components

• reproduce fourfold

• To remove the sulfur from something (such as petroleum or flue gases).

• in an injudicious manner

• a radioactive transuranic element which has been synthesized

• Insufficiently utilized

• Underuse

• Underuse

• The frictionless flow that is characteristic of a fluid with zero viscosity, especially liquid helium at temperatures near absolute zero.