Crossword clue: a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water

The most common answer is bromine (7 letters).

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

bromine 7 letters wn-def

a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water