the special line of work you have adopted as your career; "his specialization is gastroenterology"一生の職業として選択した特定の仕事專門
例:his specialization is gastroenterology 彼の専門は消化器病学だ
the act of specializing; making something suitable for a special purpose専門化する行為特化
(biology) the structural adaptation of some body part for a particular function; "cell differentiation in the developing embryo"特定の機能のためにある身体部位が構造的に適応をすること専修