> as lemmas
drop-window
drop-window n.
Brit. 
/ˈdrɒpˌwɪndəʊ/
, /ˈdrɒpˌwɪndəʊ/U.S. /ˈdrɑpˌwɪndoʊ/
/ˈdrɑpˌwɪndoʊ/ΚΠ
1901 Daily News 3 Jan. 6/4 A door with window, and on either side of the latter a drop window.
1926 Glasgow Herald 26 June 9 The drop-windows permit of ready means of ventilation on warm days.
<
as lemmas