intermediate wholesaler; middleman
A trader who buys from primary wholesalers and sells to retailers, common in Japanese distribution systems such as fish and produce markets.
築地市場には多くの仲卸業者がいる。
There are many intermediate wholesalers at Tsukiji Market.
仲卸を通さずに直接小売店に販売する。
They sell directly to retailers without going through a middleman.
Compound of 仲 (なか, 'middle, relationship') and 卸 (おろし, 'wholesale'). The exact historical derivation is uncertain, but the term reflects the intermediary role in distribution.