Definition of loosener in English:
 loosener
noun ˈluːs(ə)nəˈlus(ə)nər
1A person or thing that loosens something.
 Example sentencesExamples
-  In order to reduce volume losses of carbon loosener by drag out and evaporation and to afford degreasing properties, a seal was developed while neither the carbon loosener nor the seal alone caused corrosion, together they caused gross corrosion of certain metals, especially zinc and magnesium.
 -  First pull one end of the nail loosener through the free edge of your nail.
 -  It is an excellent climbing penetrant and nut and bolt loosener.
 
- 1.1informal  A relatively undemanding challenge early in a game or competition, before the participants are fully settled or warmed up.
 first balls from fast bowlers tend to be just looseners
 Example sentencesExamples
-  Donald's first over was a loosener - ‘not slow but not quick by his standards,’ according to Atherton - but after one ball of his second over, he switched to round the wicket, a sure sign that he was warmed up.
 -  This was a limb loosener for both teams who will certainly have a post-mortem on the game and sort out their future strategies.
 -  Glenn came down the race and bowled a few looseners on the boundary in front of the members, a little ploy the panel interpreted as a device to play havoc with the England openers’ already fragile state of mind.
 -  The opening delivery was a loosener in every sense, pitching halfway down the wicket and spearing down the legside.
 -  He got off to a decent enough start, hitting a couple of sparkling boundaries and exploiting some horrid looseners, but the bowlers took the upper hand in the afternoon session.
 
 
  Definition of loosener in US English:
 loosener
nounˈlo͞os(ə)nərˈlus(ə)nər
1A person or thing that loosens something.
 Example sentencesExamples
-  First pull one end of the nail loosener through the free edge of your nail.
 -  It is an excellent climbing penetrant and nut and bolt loosener.
 -  In order to reduce volume losses of carbon loosener by drag out and evaporation and to afford degreasing properties, a seal was developed while neither the carbon loosener nor the seal alone caused corrosion, together they caused gross corrosion of certain metals, especially zinc and magnesium.
 
- 1.1informal  A relatively undemanding challenge early in a game or competition, before the participants are fully settled or warmed up.
 Example sentencesExamples
-  Donald's first over was a loosener - ‘not slow but not quick by his standards,’ according to Atherton - but after one ball of his second over, he switched to round the wicket, a sure sign that he was warmed up.
 -  The opening delivery was a loosener in every sense, pitching halfway down the wicket and spearing down the legside.
 -  This was a limb loosener for both teams who will certainly have a post-mortem on the game and sort out their future strategies.
 -  Glenn came down the race and bowled a few looseners on the boundary in front of the members, a little ploy the panel interpreted as a device to play havoc with the England openers’ already fragile state of mind.
 -  He got off to a decent enough start, hitting a couple of sparkling boundaries and exploiting some horrid looseners, but the bowlers took the upper hand in the afternoon session.