market segment
Business term for dividing a market into distinct groups of customers with similar needs or characteristics.
The new product targets the youth market segment.
市場 (market) is the broader concept; 市場区分 refers specifically to a subdivision or segment within a market.
区分 (division, classification) is a general term; 市場区分 is a compound specifically for market segmentation.
Compound of 市場 (market) and 区分 (division, classification).