Molecular
model kit: A set of
parts, usually of plastic, that can be used to construct models of
molecules. (Computer imaging has replaced traditional molecular model
kits in many applications, but extracting three-dimensional information
from a two-dimensional image on a computer screen requires a good
understanding of basic three-dimensional molecular structure from the
start.) An essential tool for everyone who thinks about
organic
chemistry, from student to pharmaceutical professional to
professor.
The best students always reach for their model kit when thinking about
three-dimensional structure, a fundamental concept in
organic
chemistry.

A typical plastic molecular
model kit.