Definition of "segmentation" [seg•men•ta•tion]

• Division into segments. (noun)
• Embryology See cleavage. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "But I do wonder if extending the segmentation is appropriate."
• "Significant revenues from other categories may eventually return to newspapers, magazines and broadcast entities, when new media segmentation is better understood."
• "Also, to Twags point below, segmentation is really important -- especially with a limited marketing budget, it's also a tough exercise sometimes but totally worth it."