blister

• n. 水ぶくれ；水ぶくれ；泡；水疱；水疱形成剤
• vt.水ぶくれになる；のたうち回る；暴れる
• vi. 水ぶくれを作る

語源的にはball（膨らむ）と同じ。

blister

blister: [13] Blister and its now extinct variant blester first appear in English at the end of the 13th century, possibly borrowed from Old French blestre, blostre. It seems that this in turn may have come from Middle Dutch bluyster ‘swelling’, but further back than that it has not proved possible to trace the word.

blister (n.)

c. 1300, perhaps via Old French blestre "blister, lump, bump," from a Scandinavian source (compare Old Norse blastr "a blowing," dative bl?stri "swelling"), or from Middle Dutch blyster "swelling;" perhaps from PIE *bhlei- "to blow, swell," extension of root *bhel- (2) "to blow, inflate, swell;" see bole.

blister (v.)

"to become covered in blisters," late 15c.; "to raise blisters on," 1540s, from blister (n.). Related: Blistered; blistering.

1. I was bothered about the blister on my hand.

手にできた水ぶくれにイライラした。

2.It is not a good idea to burst a blister .

泡を突き破るのはいい考えではありません。

3.The bandage must be put on when the blister breaks.

水疱が破れたら包帯で巻かなければならない。

4.The affected skin turns red and may blister .

感染した皮膚は赤くなり、水疱ができる可能性があります。

5.His skin was beginning to blister .

彼の肌はヘルプを始めた。