simple past tense and past participle of skid

A group of one or more species derived from a sequential development pattern which involves continual and uniform changes from an extinct ancestral form on an evolutionary scale.

(idiomatic, informal) To profit greatly; to get an excessively good deal

(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...