研究社 新和英中辞典

はんぶん 半分

(a) half

遊び[冗談]半分に

あそび, じょうだん^２

半分にする

halve

〈分ける〉 divide something into halves

〈切る〉 cut something in half

〈減らす〉 reduce something to half

半分に切ったグレープフルーツ

a half grapefruit

a grapefruit half

半分ずつ分ける

go halves [shares]

share something half‐and‐half 《with somebody》

半分済む[済ませる]

be half through (with) 《one's work》.

用例

その大きさは普通の馬の半分しかない. It is only half the size of an ordinary horse. 茶わんに半分下さい. Just half a bowl, please. 費用はお互い半分持ちだ. We will go halves in the expenses.｜Let's share the expenses half‐and‐half. これで道のりの半分だ. We have covered half the distance [come half the way]. その値段の半分でも高い. It would be expensive at half that price. その本はまだ半分しか読んでいません. I have read only half [am only half through with] the book. 彼は戸口から半分出かかって足を止めた. He stopped at the door, half in, half out of the room.

斎藤和英大辞典

半分

読み方 はんぶん

名詞、形容詞相当語句

1

（One） half:（=する） to halve

用例

価の半分
（形容詞に訳せば）half the price―（名詞に訳せば）―one half of the price

その値段の半分でも高いものだ
It is dear at half the price―at one half of the price.

道の半分は歩いた
I did half the distance―one half of the distance―on foot.

大きさは猫の半分しかない
It is only half as large as a cat―half the size of a cat.

値段はその半分だ
It costs only half as much.

菓子を半分に切れ
Cut the cake in half.

経費を半分に減ずる
to reduce the expenditure by half―halve the expenditure

酒を盃に半分注げ
Fill the cup half full of wine.

仕事が半分仕かけてある
I find the work half-done.

彼は何事も半分ずつする
He does things by halves.

ハワイは日本と米国の半分途だ
Hawaii lies half-way between Japan and America.

半分分けする
to go halves―go shares―go snacks―（with one）

入費は半分ずつ持とう
We will go halves―go shares―go snacks―go partners―in the expenses.

半分くれ
Go halves with me!―Snacks!

半分くれと言う
to cry halves

冗談半分に聞いてみた
I asked the question half in joke―half in jest―half in play.

仕事が半分すんだ
I am half through with my work.

2

〈以下特例〉

用例

預かり主は半分の主
“Possession is nine points of the law.”

話半分に聞け
The story must be taken with a grain of salt―taken with some grains of allowance.

遊び半分に行く
I combine business with pleasure―kill two birds with one stone―kill two hares with one stone.

面白半分に入会したものがある
Some joined the society for fun.

面白半分にやる人がある
Some people do it for the fun of the thing.

あれは半分しかものを言わない男だ
He never speaks out.

いつも半分言いかけて後は言わぬ
He always begins talking about something, and never finishes it.

あの人の話は半分おまけだ
He stretches a little.

思う半分も言えぬ
The execution seldom corresponds with the conception.

JMdict

半分

読み方：はんぶん

（副詞的名詞、名詞） half

---

半分

読み方：はんぷん

（名詞） half minute

コンピューター用語辞典

半分

読み方 ハンブン

half; halves

用例

語(ワード)の下位
the lower half of the word

語(ワード)の上位
the upper half of the word

参照

• いっぱい(full)

JST科学技術用語日英対訳辞書

半分

half

英和医学用語集

半分

half

ライフサイエンス辞書

半分

**** はんぶん

(ns) half ****

(np) halves ***

用例

by half [半分にまで，半分に]

During muscle stretch, feed arteries constricted approximately 10 microm (P < 0.05) and local vasodilatation to ACh was maintained while conducted vasodilatation was reduced by half (P < 0.01). (J Physiol)

half of [〜の半分]

Half of the mutant mice died with cerebral hemorrhage within a day of birth, and approximately 18% of survivors had porencephaly. (Science)

Half of all vertebrate species are teleost fish. (Trends Genet)

one-half [2分の1]

CpG islands are present in one-half of all human and mouse genes and typically overlap with promoters or exons. (Nat Genet)

C-terminal half [C末端側の半分]

The C-terminal half of the Nod protein contains two putative DNA-binding domains. (Genetics)

N-terminal half [N末端側の半分]

The N-terminal half of ETR1 functions as a signal input domain. (Plant Physiol)

the half-life of [〜の半減期]

The half-life of AQP1 protein in isotonic conditions was approximately 4 h, whereas hypertonicity markedly increased its half-life. (J Am Soc Nephrol)

the two halves of [〜の半分それぞれ]

The different movements of the two halves of tropomyosin indicate that actin-bound tropomyosin moves as a flexible molecule and not as a rigid rod. (J Biol Chem)

half a century ago [半世紀前]

Since the structure of the DNA molecule was identified half a century ago, the complete genome sequence has been determined for 37 prokaryotes and several eukaryotes. (Curr Opin Biotechnol)

more than half of the [〜の半分以上]

More than half of the known keratin genes (n approximately 50) are expressed in the hair follicle. (J Invest Dermatol)

half-maximal inhibition [最大の2分の1の抑制]

Half-maximal inhibition required 10 nM quinacrine or 100 nM chloroquine. (J Immunol)

be half the saturation level [飽和レベルの2分の1である]

This occurs even though these concentrations are about two orders of magnitude below the level where phosphate uptake is estimated to be half the saturation level for the pico-plankton community. (Nature)

用例

halves [(それぞれの)半分]

Two structurally similar halves span the membrane with opposite polarity. (Science)

The alpha-subunit has two linked halves, transmembrane segments 1-5 and 6-10, clamped together by the gamma-subunit. (Nature)

two halves of [〜の両半分]

The last 13 residues of domain 6 have been proposed to be a calcium-activated latch that, in the inhibited form only, links two halves of gelsolin. (J Mol Biol)

日本語WordNet(英和)

半分

【副詞】

half

部分的にまたは半分の範囲に

(partially or to the extent of a half)

he was half hidden by the bushes 彼は低木に半分隠れていた

【名詞】

1 one-half, half

割り切れる全体の2等分の1

(one of two equal parts of a divisible whole)

half a loaf 塊の半分 half an hour 半時間 a century and one half 1世紀半

2 moiety, mediety

2つの（ほぼ）等しい部分の1つ

(one of two (approximately) equal parts)

3 half

いくつかのゲームあるいは公演が分割される2つの区分のうちの1つ：2つの区分は間隔によって分けられる

(one of two divisions into which some games or performances are divided: the two divisions are separated by an interval)

>>「半分」に関する類語一覧

EDR日英対訳辞書

半分

読み方 ハンブン

half

日英・英日専門用語辞書

半分

moiety，one-half

クロスランゲージ 37分野専門語辞書

半分

half

JMnedict

半分

	読み方	意味・英語表記
半分	はんぶ	（地名） Hanbu

JMnedictは、日本語の一般的な固有名詞の分類とそれを英語で表記した内容を中心に扱っています。
同じ日本語に複数の英語表記が表示される項目もあります。

Weblio英和対訳辞書

半分

Semi-

Weblio英和対訳辞書はプログラムで機械的に意味や英語表現を生成しているため、不適切な項目が含まれていることもあります。ご了承くださいませ。 お問い合わせ。