词根词缀：leuco-, leuc-, -leucemia; leuko-, leuk-, -leukemia

【来源及含义】Greek: leukos, white; the primary meaning now is the color "white"; but it also includes the meanings of "light, clear, bright"

【相关词根词缀】Inter-related cross references, directly or indirectly, involving word units meaning "white": albo-; albumino-.

【同源单词】adipoleucocyte, aleukemia, aleukemic, aleukia, aleukocyte, aleukocytic

词根词缀：phobo-, phob-, -phobia, -phobias, -phobe, -phobiac, -phobist, -phobic, -phobism, -phobous

【来源及含义】Greek: fear, extreme fear of; morbid, excessive, irrational fear, or terror of something or someone; however, sometimes this Greek element also means a strong dislike, dread, or hatred for something or someone

【同源单词】ablutophobia, ablutophobic, acarophobia, acarophobiac, acerbophobia, acerophobia