Meaning

• A length of some object.

  "a segment of rope"

• One of the parts into which any body naturally separates or is divided; a part divided or cut off; a section; a portion.

  "a segment of an orange;   a segment of a compound or divided leaf"

• A portion.

• A portion.

• A part of a broadcast program, devoted to a topic.

  "The news showed a segment on global warming."

• An Ethernet bus.

• A region of memory or a fragment of an executable file designated to contain a particular part of a program.

• (travel) A portion of an itinerary: it may be a flight or train between two cities, or a car or hotel booked in a particular city.

• A bearing representing only one part of a rounded object.

Meaning

• To divide into segments or sections.

  "Segment the essay by topic."