At the end of the column they elute one at a time. During the entire chromatography process the eluent is collected in a series of fractions. Fractions can be collected automatically by means of fraction collectors. The productivity of chromatography can be increased by running several columns at a time.
dash - the act of moving with great haste; he made a dash for the door bolt rush, rushing, haste, hurry - the act of moving hurriedly and in a careless manner; in his haste to leave he forgot his book
Underscore. The underscore is a character that originally appeared on the typewriter and was primarily used to underline words. To produce an underlined word, the word was typed, the typewriter carriage was moved back to the beginning of the word, and the word was overtyped with the underscore character.iktionary (0.00 / 0 votes) Rate this definition: underscore (Noun). An underline; a line drawn or printed beneath text; the character. underscore (Noun). A piece of background music. underscore (Verb). To underline; to mark a line beneath text. underscore (Verb). To emphasize or draw attention to.