the world > textiles and clothing > clothing > types or styles of clothing > neck-wear > [adjective] > collar > turn-down (4)
Of a collar: that may be turned or folded down; = turn-down, adj. 1. Now chiefly historical.
(a) (also laid-down), applied to a collar which is folded over instead of standing up; also as n., a ‘turn-down’ collar; (b) applied to a hand or…
transitive. To store (wine) by putting it away in cellars.