(zoology) A spider; now specifically a member of the family Araneidae; an orb weaver.

(mathematics) the symbol ∓, meaning minus or plus, used alongside the plus-minus sign to show that a negative value is to be taken where the positive value is indicated by the plus-minus sign, an...

(obsolete) A pillowcase; a fabric case or covering as for a pillow.

Any of species Trichoglossus moluccanus of parrots.