
1) Deck openings 2) Drains on deck
Found on
https://www.crosswordclues.com/clue/scuppers

Originally a series of pipes fitted through the ships side from inside the thicker deck waterway to the topside planking to drain water overboard, larger quantities drained through freeing ports, which were openings in the bulwarks.
Found on
http://en.wikipedia.org/wiki/Glossary_of_nautical_terms

Originally a series of pipes fitted through the ships side from inside the thicker deck waterway to the topside planking to drain water overboard, larger quantities drained through freeing ports, which were openings in the bulwarks.
Found on
http://en.wikipedia.org/wiki/Glossary_of_nautical_terms

Drains in the waterways of the main or weather deck.
Found on
http://shipwrightjournal.blogspot.co.uk/p/glossary-of-nautical-terms.html

Drain holes on deck, in the toe rail, or in bulwarks or (with drain pipes) in the deck itself.
Found on
http://www.boatsafe.com/nauticalknowhow/gloss.htm

Drain holes on deck, in the toe rail, or in bulwarks or (with drain pipes) in the deck itself
Found on
http://www.encyclo.co.uk/visitor-contributions.php

Drain holes on deck, in the toe rail, or in bulwarks or (with drainpipes) in the deck itself.
Found on
http://www.scale-modelers-handbook.com/nautical-terms.html

An opening on the side rail that allows water to run off the deck.
Found on
http://www.translationdirectory.com/glossaries/glossary101.htm
No exact match found.