hatching

Etymology

noun

1. A method of shading areas of a drawing or diagram with fine parallel lines.
2. A group of birds, reptiles, fish, insects, etc., which emerge from their eggs at the same time.
   We got a good hatching from the swallowtail eggs.
3. The act of an egg hatching, eclosion
4. Patterns used in construction drawings to represent various materials.

verb

1. present participle and gerund of hatch