plural of blue hook star

(astronomy) a type of helium-burning blue giant star that is hotter than the average star in this stage of their life, due to having a more massive helium core

(biology) A screening technique for the rapid detection of recombinant bacteria in vector-based molecular cloning experiments. DNA of interest is ligated into a vector, which is then inserted into a host cell; these are grown in the presence of X-gal. Cells transformed with vectors containing recombinant DNA will produce white colonies; cells transformed with non-recombinant plasmids (i.e. only the vector) grow into blue colonies.

(art) An intense deep blue hue achieved by means of ultramarine pigment and a binder.

A chemical reaction in which an aqueous solution containing glucose, sodium hydroxide and methylene blue turns from colourless to blue upon shaking and then loses its colour after a while. With further shaking, the cycle can be repeated several times.

plural of blue light disco

plural of woodland blue phlox

plural of blue wood sedge

plural of false blue indigo

Synonym of blue-throated sapphire