Duct lead-in, 4 letters
Duct opening, 4 letters
Pre-duct?, 4 letters
Engineering projects of ancient Rome, 7 letters
Flume, 8 letters
Roman water conduit, 8 letters
Site of triple dead heat, 8 letters
Water channel, 8 letters
Water conduit, 8 letters
A conduit that resembles a bridge but carries water over a valley, 8 letters
Conduits, 9 letters
Fit for ___, 6 letters
Containing water, 7 letters
Like the oceans, 7 letters
Watery, 7 letters
Middle of the message, 15 letters