均匀 (jūn yún) is an adjective meaning 'even', 'uniform', or 'consistent'—describing something that is evenly distributed, balanced in density, thickness, color, texture, or intensity. The character 均 means 'equal' or 'all the same', while 匀 means 'to distribute evenly' or 'to balance'; together, they reinforce the idea of consistent distribution without variation. It’s commonly used to describe physical properties like light, heat, sound, or material composition.

This word appears frequently in scientific, technical, and everyday descriptive contexts—for example, when discussing how paint is applied, how heat spreads across a pan, or how nutrients are distributed in food. It often modifies nouns directly (e.g., 均匀的分布) or follows 是 or 很 in predicative use (e.g., 这个涂层很均匀). Unlike colloquial terms like 平均 (average), 均匀 emphasizes spatial or qualitative consistency, not arithmetic calculation.