Specialization is working on a specific task. Say someone is a fisherman. He would be a specialist in fishing, because that is the job he does to his best ability.
Dermatology
specializations
There are a number of specializations that the Incas held. The common ones included fishing, hunting, farming and making weapons.
I say burritos prolly
specializations
Soul Said to Maka that he was in love.
Reach level 50
Here are a few: virology, bacteriology, mycology, parasitology...
They are - Champion, Templar, Berserker, Reaver.
Some of the specializations of the law firm Jackson Lewis LLP are background checks, government relations, immigration, labour and preventive practices, and workplace safety.
Halo 4 offers 8 specializations. They include Wetwork, Pioneer, Engineer, Tracker, Rogue, Stalker, Pathfinder, and Operator. Each offers 10 new levels to the player.
Wetwork is one of the specializations in Halo 4. Only 2 specializations are available at launch, Wetwork an Operator. When you reach rank 50 in Halo 4 you can choose a specialization.