What is "growing cell"

Grow \Grow\ (gr[=o]), v. i. [imp. Grew (gr[udd]); p. p. Grown (gr[=o]n); p. pr. & vb. n. {Growing.] [AS. gr[=o]wan; akin to D. groeijen, Icel. gr[=o]a, Dan. groe, Sw. gro. Cf. Green, Grass.]

1. To increase in size by a natural and organic process; to increase in bulk by the gradual assimilation of new matter into the living organism; -- said of animals and vegetables and their organs.

2. To increase in any way; to become larger and stronger; to be augmented; to advance; to extend; to wax; to accrue.

   Winter began to grow fast on.
   --Knolles.

   Even just the sum that I do owe to you Is growing to me by Antipholus.
   --Shak.

3. To spring up and come to maturity in a natural way; to be produced by vegetation; to thrive; to flourish; as, rice grows in warm countries.

   Where law faileth, error groweth.
   --Gower.

4. To pass from one state to another; to result as an effect from a cause; to become; as, to grow pale.

   For his mind Had grown Suspicion's sanctuary.
   --Byron.

5. To become attached or fixed; to adhere.

   Our knees shall kneel till to the ground they grow.
   --Shak.

   Growing cell, or Growing slide, a device for preserving alive a minute object in water continually renewed, in a manner to permit its growth to be watched under the microscope.

   Grown over, covered with a growth.

   To grow out of, to issue from, as plants from the soil, or as a branch from the main stem; to result from.

   These wars have grown out of commercial considerations.
   --A. Hamilton.

   To grow up, to arrive at full stature or maturity; as, grown up children.

   To grow together, to close and adhere; to become united by growth, as flesh or the bark of a tree severed.
   --Howells.

   Syn: To become; increase; enlarge; augment; improve; expand; extend.