What is the meaning of discovered?

verb

• Discover or determine the existence, presence, or fact of.
  • usage: "She detected high levels of lead in her drinking water"; "We found traces of lead in the paint"
  • synonyms: detect, observe, find, discover, notice
• Get to know or become aware of, usually accidentally.
  • usage: "I learned that she has two grown-up children"; "I see that you have been promoted"
  • synonyms: learn, hear, get word, get wind, pick up, find out, get a line, discover, see
• Make a discovery, make a new finding.
  • usage: "Roentgen discovered X-rays"; "Physicists believe they found a new elementary particle"
  • synonyms: discover, find
• Make a discovery.
  • usage: "She found that he had lied to her"; "The story is false, so far as I can discover"
  • synonyms: discover, find
• Find unexpectedly.
  • usage: "the archeologists chanced upon an old tomb"; "she struck a goldmine"; "The hikers finally struck the main path to the lake"
  • synonyms: fall upon, strike, come upon, light upon, chance upon, come across, chance on, happen upon, attain, discover
• Make known to the public information that was previously known only to a few people or that was meant to be kept a secret.
  • usage: "The auction house would not disclose the price at which the van Gogh had sold"; "The actress won't reveal how old she is"; "bring out the truth"; "he broke the news to her"; "unwrap the evidence in the murder case"
  • synonyms: unwrap, disclose, let on, bring out, reveal, discover, expose, divulge, break, give away, let out
• See for the first time; make a discovery.
  • usage: "Who discovered the North Pole"
  • synonyms: discover
• Identify as in botany or biology, for example.
  • synonyms: identify, discover, key, key out, distinguish, describe, name

adjective

• Discovered or determined by scientific observation.
  • usage: "variation in the ascertained flux depends on a number of factors"; "the discovered behavior norms"; "discovered differences in achievement"; "no explanation for the observed phenomena"
  • synonyms: ascertained, observed