词根：med = to heal, to attend to
来自拉丁语的med意为to heal,to attend to。
（*拉丁文medicus(=to heal)——英文字根字典）
同源词：
1. premeditated（事先注意的pre(=before) + med(attend to,heal)）
adj.事先想好的，有计划的
premeditate v.预先考虑
premeditation n.预先的设想
Her slapping you wasn't premeditated act. She was just very angry.她不是有意要打你，只是当时太生气了。
2. meditate
v.(~on)深思，深思；打算，企图 *med(=attend to)
meditate mischief/revenge 企图搞恶作剧/策划报复
meditate on his misfortune 深思自己的不幸
3. meditation
n.冥想，深思，深思;(pl.)深思录 *med(attend to)
meditative adj.冥想的，乐于冥想的
deep in meditation 陷入深思的
meditation on the causes of aggression in man 关于人类侵略原因的思考
4. remedy
n.治疗；药物；补救（措施），矫正（法）v.治疗；矫正；除去（弊端等）re(=again) ,med(=heal)
good remedy for colds 好的感冒药
the only remedy for the situation 这种情况的唯一补救措施
past/beyond remedy没有补救方法的
your faults for pronunciation can be remedied.你发音上的缺陷可以矫正。
5. remedial
adj.治疗的；矫正的；补救的 *re(=again),med(=heal)
remediable adj.可以治疗的；可以矫正的，可以挽回的
remedial measures 补救措施
remedial education/classes 矫正教育/学习
6. irremediable
adj.无法治疗的；无法挽回的 *ir<in(=not),re(=again),med(=heal)
irremediable acts/faults 不能挽回的行为/过失
7. medical
adj.医学的；医术的；医疗的；内科的 n.体检 *med(=heal)
medical attendant 私人保健医生
medical examination 治疗，医疗
medical fertilization 人工授精
medical art 医术
medical examination 体检
medical student 医学院学生
medical practitioner 开业医师
medical record 医疗记录
medical certificate 诊断书
medical checkup 体检
8. medicament
n.（内服或外用的）药 *med(=heal)
9. medicate
v.用药治疗；在...里加入药 *med(=heal)
medicated bath/gauze （药浴/药用肥皂/药制纱布
10. medication
n.药物治疗；药物 *med(=heal)
mass medication 在公共自来水中加氟等针对大众的预防或治疗措施
11. medicine
n.医学，医术；内科；药物，（特别指）内服药；（原始部落的）咒文，符咒；魔法 *med(=heal)
Doctor of Medicine 医学博士，缩写：M.D
practice medicine （医生）开业
take medicine(s)吃药
medicine for a cough 治疗咳嗽的药
take one's medicine 忍受不愉快的事情；受到惩罚
12. medicinal
adj.药的；治疗的 *med(=heal)
medicinal preparations for both internal and external use 内服药和外用药的制作材料
13. medico
n.医生；医学院学生 *med(=heal)
14. Mdeicare
n.<美>（尤其指政府为老年人设置的）医疗保障方案（来源于medical care）*med(=heal)
词根：extr, exter = out表示“出去”
extra a. 额外的
extraneous a. 不相关的（extr+aneous表形容词→出去的→不相关的）
extreme a. 极端的（extr+eme表最高级→超出主题→极端的）
extremity n. 非常手段（extreme+ity表名词→极端手段）
external a. 外部的（exiern+al）
exterior a. 外部的，外形的（exter+ior表形容词，如：interior内部的）
词根词缀：antero-
【来源及含义】Latin: before, in front of; fore, prior, preceding; used as a prefix
【相关词根词缀】 Related before-word units: ante-; anti-; pre-; pro-.
【同源单词】anterodorsal, anteroexternal, anterofrontal, anterograde, anteroinferior, anterointernal
词根词缀：corne-, corneo-
【来源及含义】Latin: horny, hornlike; horny [tissue] pertaining to the cornea, the horny transparent anterior portion of the external covering of the eyes
【相关词根词缀】 Related references to "eye" or "eye part" word families: blepharo-; core-; eye, eyes; irido-; lenti-, lens-; lenticulo-; ocelli-; oculo-; op-, -optic; ophthalmo-; phaco-; pupillo-; retino-; uveo-.
【同源单词】cornea, corneal, corneas, corneoblepharon, corneous, iridocorneosclerectomy
词根词缀：ecto-, ect-
【来源及含义】Greek: outside, external, beyond
【同源单词】ectobiology, ectoblast, ectocardia, ectocytic, ectoderm, ectodermal
词根词缀：exo-, ex-
【来源及含义】Greek: outer, outside, external; used as a prefix
【同源单词】exobiology, exobiotic, exocardia, exocardiac, exocardial, exocarp
词根词缀：extra-, extro-, extr-, exter-
【来源及含义】Latin: beyond, outside, on the outside, outward, external
【同源单词】Ab extra, ad extra, ad extremum, exteriorly, external, external reforming
词根词缀：prosth-, prosthe-, prosthet-, prostheto-
【来源及含义】Greek > Latin: an addition; to put to, add to, to place
【相关词根词缀】 Related word families intertwined with "to place, placing, to put; to add; to stay; to attach" word units: fix-; pon-; stato-; the-, thes-.
【同源单词】dental prosthesis, externally powered prosthetics, keratoprosthesis, maxillofacial prosthesis, myoelectric prosthesis, prosthesis
词根词缀：pudend-, puden-, pudic-
【来源及含义】Latin: originally, "that which one should be ashamed of"; the external organs of generation; from pudere "to cause shame".
【同源单词】digitus impudicus, impudence, impudent, impudently, impudicity, Mimosa pudica