Other competitive bidding rules. include: (2) Since finding a good fit is so important in a competitive auction, until a fit is. found, any new-suit bid usually promises a 5-card suit and at least 8-9+ HCPâs at. the one level and 10+ at the two level.
Definition of litmus. 1  1 : a coloring matter from lichens that turns red in acid solutions and blue in alkaline solutions and is used as an acid-base indicator. 2  2 : the critical factor in a litmus test; also : litmus test.
Litmus is a natural dye made from small plants called, lichens. These plants are of several varieties and grow in abundance in the Netherlands. When lichen called Rocella Tincotoria is allowed to react with ammonia, potassium carbonate and lime it gives a blue-color material, which is used as the coloring matter for paper.