Definition of hatchings:
(n) :
(zoology) The act of an egg hatching, eclosion.
(n) :
(zoology) A group of birds, reptiles, fish, insects, etc., which emerge from their eggs at the same time.
(n) :
(art, drawing, drafting) A method of shading areas of a drawing or diagram with fine parallel lines.
(n) :
Patterns used in construction drawings to represent various materials.