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What does the suffix 'osis' mean?

  1. Under technique

  2. Condition

  3. The study of hair

  4. Visible braid technique

The correct answer is: Condition

The suffix 'osis' typically means a medical condition, disease, or disorder. Option A is incorrect because the prefix 'under' typically refers to a position or object being located beneath or lower than something else, not a technique. Option C is incorrect because the suffix 'ology' typically means the study of something, not 'osis'. Option D is incorrect because 'braiding' does not relate to the suffix 'osis' in any way.