词根词缀：fissi-, fiss-, fissur-

【来源及含义】Latin: split, cleave, cut into, cleft; vent; break into parts, separate

【同源单词】binary fission, cervical fissure, contrafissure, fissile, fission, fissiparity

词根词缀：photo-, phot-, -photic

【来源及含义】Greek: light; ultraviolet and infrared radiation; radiant energy

【相关词根词缀】 Etymologically related "light, shine, glow" word families: ethero-; fulg-; luco-; lumen-, lum-; luna, luni-; lustr-; phengo-; pheno-; phospho-; scinti-, scintill-; splendo-.

【同源单词】aphotesthesia, aphotic, aphototaxis, aphototropism, astrophotograph, astrophotographer