say it: SLAHY-dur
slider is a noun meaning "a person who slips or slides because of loss of traction". It carries 4 recorded senses.
a person who slips or slides because of loss of traction
freshwater turtle of United States and South America; frequently raised commercially; some young sold as pets
a fastball that curves slightly away from the side from which it was thrown
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for slider come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.