contraction

• n. 収縮、収縮; 頭字語; 疾患

contract、収縮から。

contraction (n.)

late 14c., "action of making a contract" (especially of marriage), also "action of shrinking or shortening," from Old French contraction (13c.), or directly from Latin contractionem (nominative contractio), noun of action from past participle stem of contrahere (see contract (n.)). Meaning "action of acquiring (a disease) is from c. 1600. Grammatical sense is from 1706; meaning "a contracted word or words" is from 1755. Contractions of the uterus in labor of childbirth attested from 1962.

1. The contraction of muscles uses energy and releases heat.

筋肉の収縮はエネルギーを消費し、熱を放出する。

2.the expansion and contraction of the metal

金属の膨張と収縮

3. Contraction of the timbers left gaps in the fence.

木材が収縮し、結果として塀が縫い目を露出した.

4.The forces of expansion are balanced by forces of contraction .

膨張力と収縮力は互いに平衡している。

5."It 's "（with an apostrophe）should be used only as a contraction for "it is ".

it 's（アポストロフィ付き）はitisの短縮形としてのみ使用できます。