词根：galact, lact = 乳

  词根galact和lact 分别来源于希腊语 galakt和拉丁语。词根 -lacti- 为 -lact- 的变体，且有异形同义词根：-mamm- 乳房。

同源词：

1. lactary  [lact 乳，-ary (a.) 形容词后缀，表示“…的”]
  adj.乳的,乳状的

2. ablactate  [ab- 离开、-ate (v.) 表示使, → 使之离开幼小，不再吃母乳 →]
  v.使断奶

3. ablactation  [ab- 离开，lact 乳，-ation 名词后缀]
  n.断奶

4. lactifuge  [lact 乳,fug 逃, 散,-e (n.) 名词后缀]
  n. 退乳药,止乳剂

5. lactate  [lact 乳，-ate 动词后缀]
  v.分泌乳汁；喂奶，授奶

6. lactation  [见上，-ation 名词后缀]
  n.汁分泌；授乳（期）

7. lacteal  [lact 乳，-eal 形容词后缀,...的]
  adj.乳汁的；乳白的

8. lactean  [lact 乳，-ean 形容词后缀，...的]
  adj.乳汁的；乳白的

9. lactic  [lact 乳，-ic ... 的]
  adj.乳的；乳汁的

10. lactose  [lact 乳，-ose 化学名词后缀，表示 糖]
  n.乳糖

11. prolactin  [pro- 前,向前、-in (n.) 表示素 → 催促乳汁向前流出的激素→]
  n.催乳激素

12. agalactia  [a- 无、galact 乳，-ia (n.) 名词后缀，表示疾病 → 缺乏乳汁的病症→]
  n.乳汁缺乏症

13. galactin  [galact 乳，-in (n.) 名词后缀，表示素 → 催乳激素的另类写法]
  n.催乳激素

词根：galax = milk （乳）

galaxy 欢蹦 ，跳跃（用腿蹦跳）

词根词缀：astragalo-, astragal-

【来源及含义】Greek: anklebone, talus ball of ankle joint; dice, die [the Greeks made these from ankle bones]

【同源单词】astragalar, astragalectomy, astragalocalcanean, astragalofibular, astragalomancy, astragaloscaphoic

词根词缀：galacto-, galact-, -galaxy

【来源及含义】Greek: milk

【相关词根词缀】 Related "milk" unit: lacto-.

【同源单词】agalactia, agalactorrhea, agalactosis, agalactous, agalorrhea, androgalactozemia

词根词缀：galeo-, galea-, galeat-, galei-, galer-

【来源及含义】Latin: helmet, helmet shaped, to cover with a helmet; cap; used primarily in zoology and botany with phases of sense development that seem to have been: weasel, weasel's skin or hide, leather, and then a helmet made of leather; by extension, it also means "cat, cats" in some words

【相关词根词缀】Cross references of word families that are related directly, or indirectly, to: "cat": aeluro-, eluro-; cat; feli-, felin-; gato-.

【同源单词】galea, galeanthropy, galeated, galeiform, galeomania, Galeomorphil

词根词缀：gallo-, gall-

【来源及含义】Latin: of or pertaining to Gaul

【同源单词】Gallic, Gallomania, Gallophile, Gallophilia, Gallophobe, Gallophobia

词根词缀：galvano-, galvan-

【来源及含义】Named after the Italian physician and physicist who investigated the nature and effects of what he conceived to be electricity in animal tissue; who in 1762 discovered and first described voltaic electricity; electric currents; and primarily, direct electrical current.

【相关词根词缀】 A cross reference of word units that are related, directly and/or indirectly, with "electricity": electro-; hodo-; ion-; piezo-; -tron; volt; biomechatronics, info; mechatronics, info.

【同源单词】electrolysis, Galvani, galvanic, galvanic battery, galvanic corrosion, galvanic couple

词根词缀：megalo-, megal-, -megalia, -megaly

【来源及含义】Greek: large, big, very big

【相关词根词缀】 Related "big, large, great" words: grand-; macro-; magni-; major-; maxi-; mega-.

【同源单词】acromegalogigantism, acromegaloidism, acromegaly, adenomegaly, adrenomegaly, angiomegaly

词根词缀：prodigal-

【来源及含义】Latin: a spendthrift, wasteful; a squanderer; to drive forth

【同源单词】prodigal, prodigal, prodigal son, prodigality, prodigalize, prodigally