名詞 integral:

1. the result of a mathematical integration; F(x) is the integral of f(x) if dF/dx = f(x)

形容詞 integral:

1. existing as an essential constituent or characteristic
   同義詞：built-in, constitutional, inbuilt, inherent
2. constituting the undiminished entirety; lacking nothing essential especially not damaged
   同義詞：entire, intact

1. The kitchen is an integral part of a house.
   廚房是房子不可缺的部分
2. A solid compound containing water molecules combined in a definite ratio as an integral part of the crystal.
   水合物結(jié)晶中有一定比例水分子成分的固體化合物，其中水分子與晶體的含量為一固定比例
3. In a duplicator, a tank that may or may not be an integral part of the machine, providing a reservoir of fluid for the damping system.
   復(fù)印機(jī)中的一個(gè)箱體，它可以是也可以不是復(fù)印機(jī)整體的組成部分，作為減震系統(tǒng)的液體容器。

in.te.gral

adj.（形容詞）
Essential or necessary for completeness; constituent:
必須的：構(gòu)成整體所必須的；應(yīng)有的：
例句：
The kitchen is an integral part of a house.
廚房是房子不可缺的部分

Possessing everything essential; entire.
完整的：具有全部要素的；完整的
[n.t-gr…l] Mathematics
[n.t-gr…l] 【數(shù)學(xué)】
Expressed or expressible as or in terms of integers.
整數(shù)的：用整數(shù)表示的或可用整數(shù)表示的
Expressed as or involving integrals.
積分的：表示為或包含整數(shù)的
n.（名詞）
A complete unit; a whole.
整體；全體
[n.t-gr…l] Mathematics
[n.t-gr…l] 【數(shù)學(xué)】
A definite integral.
一個(gè)定積分
An indefinite integral.
一個(gè)不定積分

來源：
Middle English
中古英語
from Old French
源自 古法語
from Medieval Latin integr3lis [making up a whole]
源自 中世紀(jì)拉丁語 integr3lis [組成一個(gè)整體]
from Latin integer [complete] * see integer
源自 拉丁語 integer [完全的] *參見 integer

【引伸】
in.tegral.ity
in.tegrally
adv.（副詞）