Definition of spinsters:
(n) :
(sometimes derogatory) A woman who has never been married, especially one past the typical marrying age according to social traditions.
(n) :
One who spins (puts a spin on) a political media story so as to give something a favorable or advantageous appearance; a spin doctor, spin merchant or spinmeister.
(n) :
(obsolete) Someone whose occupation was spinning thread.
(n) :
(rare, dialectal) A spider; an insect (such as a silkworm) which spins thread.
(n) :
(obsolete) A woman of evil life and character; so called from being forced to spin in a house of correction.