column chromatography column | a vertical glass tube used in column chromatography, a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands |
pincer pair of pincers tweezer pair of tweezers | a hand tool for holding consisting of a compound lever for grasping |
pliers pair of pliers plyers | a gripping hand tool with two hinged arms and (usually) serrated jaws |
scissors pair of scissors | an edge tool having two crossed pivoting blades |
tongs pair of tongs | any of various devices for taking hold of objects, usually have two hinged legs with handles above and pointed hooks below |
virginal pair of virginals | a legless rectangular harpsichord, played (usually by women) in the th and th centuries |
pair | a poker hand with cards of the same value |
pair | two people considered as a unit |
pair brace | a set of two similar things considered as a unit |
au pair | a young foreigner who lives with a family in return for doing light housework |
au pair girl | a foreign girl serving as an au pair |
chromatography | a process used for separating mixtures by virtue of differences in absorbency |
column chromatography | chromatography that uses selective adsorption by a column of powders |
pair production pair creation pair formation | the transformation of a gammaay photon into an electron and a positron when the photon passes close to an atomic nucleus |
paper chromatography | chromatography that uses selective adsorption on a strip of paper |
d couple pair twosome twain brace span yoke couplet distich duo duet dyad duad | two items of the same kind |
base pair | one of the pairs of chemical bases joined by hydrogen bonds that connect the complementary strands of a DNA molecule or of an RNA molecule that has two strands, the base pairs are adenine with thymine and guanine with cytosine in DNA and adenine with uracil and guanine with cytosine in RNA |
match mate couple pair twin | bring two objects, ideas, or people together, This fact is coupled to the other one, Matchmaker, can you match my daughter with a nice young man?, The student was paired with a partner for collaboration on the project |
copulate mate pair couple | engage in sexual intercourse, Birds mate in the Spring |
pair geminate | arrange in pairs, Pair these numbers |
pair geminate | occur in pairs |
pair pair off partner off couple | form a pair or pairs, The two old friends paired off |