organizer

noun

1. a person who organizes, especially one who forms and organizes a group.
2. a person whse job is to enlist employees into membership in a union.
3. a person who organizes or schedules work: You would get this job done sooner if you were a better organizer.
4. a multiple folder or, sometimes, a notebook in which correspondence, papers, etc., are sorted by subject, date, or otherwise, for systematic handling.
5. Embryology. any part of an embryo that stimulates the development and differentiation of another part.

noun

1. a person who organizes or is capable of organizing
2. a container with a number of compartments for storagehanging organizers to keep your clothes smart
3. embryol any part of an embryo or any substance produced by it that induces specialization of undifferentiated cells

n.1849, agent noun from organize. n.

1. One that organizes.
2. A group of cells that induces differentiation of cells in the embryo and controls the growth and development of adjacent parts through the action of an evocator.inductor