What's the difference between breakaway and fissiparous?

Breakaway

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Definition:

Example Sentences:

Fissiparous

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Definition:

• (a.) Reproducing by spontaneous fission. See Fission.

Example Sentences:

• (1) Yes, that might mean five more years of pain, though I suspect in these fissiparous times it won’t last so long.
• (2) Groping for British emblems to bind together an ever more diverse and fissiparous society, politicians struggle to find cultural and emotional social glue.
• (3) But Clegg must be thinking very carefully about his options – the Liberals have a terribly fissiparous history.
• (4) The mortality and fissiparity frequency of the subjects were studied.
• (5) At doses where an antioxidant effect prevails, fissiparity is stimulated.
• (6) The toxicity of selenium (Na2SeO3) and mercury (HgCl2) was determined by using a freshwater planarian which is particularly sensitive to pollution, and belongs to a fissiparous breed of Dugesia gonocephala.