"Pasture-raised" suggests animals spent time on pasture rather than in confinement. The term isn't consistently regulated — USDA has no standardized definition for pasture-raised across species — so the claim means different things depending on who's using it.
For eggs: often paired with a square-footage guarantee (e.g. Certified Humane Pasture-Raised requires 108 sq ft per bird). For meat (beef, pork, poultry): typically means time outdoors on grass with shelter access, but specifics vary. For dairy: usually paired with grass-fed claims.
When it matters, third-party certifications (Animal Welfare Approved, Certified Humane) offer more defined standards than the raw term.