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

词根词缀：thermo-, therm-, thermi-, -thermia, -therm, -thermal, -thermic, -thermias, -thermies, -thermous, -thermy

【来源及含义】Greek: heat, heating, heater, hot, warm

【相关描述】The term heat is employed in ordinary language in different senses. Some scientists distinguish four principal applications of the term:

【相关词根词缀】 Related "heat, hot" word units: ferv-; pyreto-. Related "bubble" word unit: ebulli-.

【同源单词】acrohypothermia, acrohypothermy, adiathermance, adiathermancy, adiathermanic, adiathermanous