形容詞 congenital:

1. present at birth but not necessarily hereditary; acquired during fetal development
   同義詞：inborn, innate

1. An abnormal duct or passage resulting from injury, disease, or a congenital disorder that connects an abscess, a cavity, or a hollow organ to the body surface or to another hollow organ.
   瘺，瘺管由于受傷、疾病或先天性變形引起的把膿腫、腔洞或空器官同身體或其它空器官連結(jié)起來(lái)的病變的通道
2. Congenital absence of normal pigmentation or coloration in a person, an animal, or a plant.
   白化病人體、動(dòng)物或植物先天性缺乏正常的色素沉淀或染色
3. A congenital condition characterized by the incomplete expansion of the lungs at birth.
   肺膨脹不全一種先天性疾病，特征為出生時(shí)肺部不完全膨脹
4. A congenital, often hereditary skin disease characterized by dry, thickened, scaly skin.
   鱗癬，干皮病一種先天的，經(jīng)常是遺傳性的皮膚病，表現(xiàn)為皮膚干燥、變厚并出現(xiàn)鱗狀屑片

con.gen.i.tal

adj.（形容詞）

Existing at or before birth.
天生的：出生前或出生時(shí)已存在的
Acquired at birth or during uterine development, as a result of either hereditary or environmental influences.See Synonyms at innate
先天的：由于遺傳或環(huán)境影響在出生或出生前就獲得的參見(jiàn) innate
Being an essential characteristic as if by nature; inherent:
似乎是與生俱來(lái)的本質(zhì)特征；固有的：
例句：
.the congenital American optimism that denies conflicts and imagines all stories having happy endings.(Robert J. Samuelson)
.天生的美國(guó)式的樂(lè)觀主義拒絕沖突或認(rèn)為所有事情都有好結(jié)局.(羅伯特J.塞繆爾森)

來(lái)源：
From Latin congenitus
源自 拉丁語(yǔ) congenitus
com- [com-]
com- [前綴，.和.]
genitus [born] [past participle of] gignere [to bear] * see gen…-
genitus [出生] [] gignere的過(guò)去分詞 [具有] *參見(jiàn) gen…-

【引伸】
congen.itally
adv.（副詞）