Noun Form of meditative worship practiced by the Society of Friends (Quakers); meeting for worship, a refusal to speak when expected, the absence of sound, verb_ keep from expression, for example by threats or pressure, To block gene expression, transitive verb_ To restrain from the exercise of any function, privilege of instruction, or the like, especially from the act of preaching, To compel to silence; to cause to be still; to still; to hush, To put to rest; to quiet, intransitive verb_ To make silent or bring to silence, To curtail the expression of; suppress, Genetics To interfere with the expression of (a gene or gene segment) so that its biological function is suppressed