English Dictionary

root

IPA（発音記号）

/ɹuːt/

名詞

可算名詞 不可算名詞 比喩的用法 俗語

The part of a plant, generally underground, that anchors and supports the plant body, absorbs and stores water and nutrients, and in some plants is able to perform vegetative reproduction.

日本語の意味

植物の根部。一般に地下に位置し、植物体を支え、固定し、水分や栄養分を吸収・蓄える器官。一部の植物では無性生殖を行う場合もある。

After the storm, the old oak's root was exposed, showing how deeply it had anchored the tree.

嵐の後、古いオークの根が露出し、その木がどれほど深く地中に根を張っていたかがわかった。

意味（1）

The part of a plant, generally underground, that anchors and supports the plant body, absorbs and stores water and nutrients, and in some plants is able to perform vegetative reproduction.

This tree's roots can go as deep as twenty metres underground.

意味（2）

A root vegetable.

… two fields which should have been sown with roots in the early summer were not sown because the ploughing had not been completed early enough.

意味（3）

The part of a tooth extending into the bone holding the tooth in place.

Root damage is a common problem of overbrushing.

意味（4）

The part of a hair under the skin that holds the hair in place.

The root is the only part of the hair that is alive.

意味（5）

The part of a hair near the skin that has not been dyed, permed, or otherwise treated.

He dyed his hair black last month, so the grey roots can be seen.

意味（6）

(figuratively) The primary source; origin.

The love of money is the root of all evil.

意味（7）

(aviation) The section of a wing immediately adjacent to the fuselage.

意味（8）

(engineering) The bottom of the thread of a threaded object.

The root diameter is the minor diameter of an external thread and the major diameter of an internal one.

意味（9）

(arithmetic) Of a number or expression, a number which, when raised to a specified power, yields the specified number or expression.

The cube root of 27 is 3.

意味（10）

(arithmetic) A square root (understood if no power is specified; in which case, "the root of" is often abbreviated to "root").

Multiply by root 2.

意味（11）

(mathematical analysis) A zero (of an equation).

Holonym: kernel

意味（12）

(graph theory, computing) The single node of a tree that has no parent.

意味（13）

(linguistic morphology) The primary lexical unit of a word, which carries the most significant aspects of semantic content and cannot be reduced into smaller constituents. Inflectional stems often derive from roots.

Coordinate term: stem

意味（14）

(linguistics) A word from which another word or words are derived.

意味（15）

(music) The fundamental tone of any chord; the tone from whose harmonics, or overtones, a chord is composed.

意味（16）

The lowest place, position, or part.

deep to the roots of hell

意味（17）

(computing) In UNIX terminology, the first user account with complete access to the operating system and its configuration, found at the root of the directory structure; the person who manages accounts on a UNIX system.

I have to log in as root before I do that.

意味（18）

(computing) The highest directory of a directory structure which may contain both files and subdirectories.

I installed the files in the root directory.

意味（19）

(slang) A penis, especially the base of a penis.

roots （ plural ）