diaphragm

• n.絞り；シャッター、[カメラの]絞り；絞り；隔膜

ギリシャ語のdiaphragma、ブロック、障害物、dia-、貫通、-phrag、塞ぐ、が語源で、語源的にはcataphractと同じ。 もともとは喉と腹腔を隔てる筋肉であったが、後に写真機の開口部などにも使われる。

diaphragm

diaphragm: [17] The etymological notion underlying diaphragm is of a sort of ‘fence’ or ‘partition’ within the body. It comes via late Latin diaphragma from Greek diáphragma. This in turn was a derivative of diaphrássein ‘divide off, barricade’, a compound verb formed from the intensive prefix dia- and phrássein ‘fence in, enclose’. Originally in Greek diáphragma was applied to other bodily partitions than that between the thorax and the abdomen – to the septum which divides the two nostrils, for instance.

diaphragm (n.)

late 14c., from Late Latin diaphragma, from Greek diaphragma "partition, barrier, muscle which divides the thorax from the abdomen," from diaphrassein "to barricade," from dia- "across" (see dia-) + phrassein "to fence or hedge in." The native word is midriff. Meaning "contraceptive cap" is from 1933.

1. The diaphragm vibrates，thus setting the air around it in motion.

ダイヤフラムが振動し、周囲の空気も不安定になった。

2.The diaphragm draws air into the lungs.

横隔膜を下に動かして空気を肺に入れる。

3.A portion of the cardia is demonstrated above the diaphragm .

横隔膜に一部の噴門が発見された.

4.Gastric distention may also reduce lung volume by elevating the diaphragm .

胃が膨れて横隔膜が高くなると肺の容積も減少する。

5.It was a terylene diaphragm coated with a layer of aluminum.

アルミニウムめっきポリエステルフィルムを使用しています。