LONGSTANDING

Pronunciation (US):

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 Dictionary entry overview: What does longstanding mean? 

• LONGSTANDING (adjective)
  The adjective LONGSTANDING has 1 sense:

1. having existed for a long time

  Familiarity information: LONGSTANDING used as an adjective is very rare.

 Dictionary entry details 

• LONGSTANDING (adjective)

Sense 1

Meaning:

Having existed for a long time

Synonyms:

long-standing; longstanding

Context example:

the longstanding conflict

Similar:

long (primarily temporal sense; being or indicating a relatively great or greater than average duration or passage of time or a duration as specified)

 Context examples 

The researchers were able to dismiss a longstanding theory that a group called Paleoamericans existed in North America before Native Americans.

(Ancient DNA analysis unlocks secrets of Ice Age tribes in the Americas, University of Cambridge)

The findings confirm longstanding, but previously unvalidated, predictions for how plumes rise from fires, and offer new insights into the processes that control how high and how far wildfire smoke will spread.

(Researchers discover how wildfires create their own weather, National Science Foundation)

A longstanding lesion caused by death of tissue due to external pressure.

(Chronic Decubitus, NCI Thesaurus)

A longstanding unpleasant sensation associated with real or perceived physical or mental trauma.

(Chronic Pain, NCI Thesaurus)

Using new data from NASA's Cassini spacecraft, researchers believe they have solved a longstanding mystery of solar system science: the length of a day on Saturn.

(Scientists Finally Know What Time It Is on Saturn, NASA)

Little is known, though, about the effects of longstanding short sleep duration under natural conditions.

(Chronic Sleep Deprivation Suppresses Immune System, The Titi Tudorancea Bulletin)

A gene associated with the migratory patterns of golden-winged and blue-winged warblers could lend insight into the longstanding question of how birds migrate across long distances.

(New insights into genetic basis of bird migration, National Science Foundation)

A longstanding, complete blockage of a vessel.

(Chronic Total Occlusion Vessel, NCI Thesaurus/ACC)

One of the longstanding problems of working with nanomaterials—substances at the molecular and atomic scale—is controlling their size.

(Materials for the next generation of electronics and photovoltaics, The Titi Tudorancea Bulletin)

Everyone knows habitat loss is bad for animals, but there's been a longstanding debate about fragmentation – the arrangement of remaining habitat, said co-corresponding author Matt Betts of the OSU College of Forestry.

(Forest fragmentation hits wildlife hardest in the tropics, National Science Foundation)