Anagrams of: AILNNSU

• A ring- or donut-shaped area or structure.

• The region in a plane between two concentric circles of different radii.

• Any topological space homeomorphic to the region in a plane between two concentric circles of different radius.

• The ring of the sun not covered by the moon in an annular solar eclipse.

• Structure in a fern that consists of differentially thick-walled cells on a sporangium that bend and distort as a result of drying.

• The membranous remnants of a partial veil which leaves a ring on the stem of a mushroom.

• (oil and gas production) The space contained between the centre well bore and any external tubing. Sometimes used for separated gas flow.

• declare invalid

• cancel officially

• To remove the nails from.

• freshwater or marine or terrestrial gastropod mollusk usually having an external enclosing spiral shell

• edible terrestrial snail usually served in the shell with a sauce of melted butter and garlic

• gather snails

• people who have been slain (as in battle)

• killed; `slain' is formal or literary as in "slain warriors"

• declare invalid

• cancel officially

• (Islam) the way of life prescribed as normative for Muslims on the basis of the teachings and practices of Muhammad and interpretations of the Koran

• the inner and longer of the two bones of the human forearm

• a blue dye obtained from plants or made synthetically

• shrub of West Indies and South America that is a source of indigo dye