Excessively lengthy and complex Having a covert or obscure meaning Having the form of a circle Additional but subordinate in nature or function Disguised Noun A road junction at which traffic moves in one direction round a central island to reach one of the roads converging on it The idiom in full is "like looking for a needle in a haystack" it is based on the idea that it is very hard to find a sewing needle in a haystack (a tall pile of dry grass)It means when something is extremely difficult (or impossible) to find The first example of this idea in print was in the works of St Thomas More in 1532In these scenarios, the level crossing still sees a train "on approach" and will continue to ring the bells and allow the barriers to stay closed as the train may come through the crossing soon The crossing is broken If any of the vital components in a level crossing fail to work, chances are the level crossing will activate
Concealment And Revealment The Muslim Veil In Context Current Anthropology Vol 54 No 2