dredge up

verb, noun — 3 senses

dredge up

verbalso spelled dredge-up
1

Figuratively To find by diligently searching, especially from unsavory sources.

  • Where did you dredge up the idea that they didn't know what hospital he was born in?
2

Used other than figuratively or idiomatically: see dredge, up.

  • Young, dense seed mussels are dredged up and relaid in more sheltered areas, where they will not be destroyed by storms.1970, Maurice Burton, Robert Burton, The international wildlife encyclopedia, volume 1, page 1713:
  • The rush to dredge resulted in engineering problems, with those who had not first ascertained the depth of the wash by boring later dredging up only buckets of water.1997, David Malcolm Grant, Bulls, bears, and elephants: a history of the New Zealand Stock Exchange, page 91:
1 more example
  • The soil dredged up was dumped on the lagoon's shores, which also destroyed large sections of the nearby mangroves and fresh water sources that provide nutrients and oxygen to the local ecosystem2002, Anthropologica, volume 44, number 1, page 92:

dredge-up

noun
1

Astrophysics A temporary episode of deep convection in an evolved star, which brings fusion products to the surface of the star and allows them to be detected in the star's spectrum.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — authors: page histories for dredge up and dredge-up.