two-seam fastball

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

(baseball) A pitch thrown with a grip in the "horseshoe" orientation of the ball, with the rotation at a slight angle resulting in less Magnus effect as compared to a four-seam fastball since only two of the ball's seams cross the flight path; the pitch is delivered with a similar velocity as a four-seam fastball, but has a degree of sink.

日本語の意味

野球における2シーム・ファストボールは、馬蹄状のグリップで握られ、ボールの縫い目が2本だけ飛行経路を横切るように投げられる速球です。四縫いのファストボールに比べ、マグナス効果が弱く、沈み味（シンク）が見られる特徴があります。

英語の意味

(baseball) A pitch thrown with a grip in the "horseshoe" orientation of the ball, with the rotation at a slight angle resulting in less Magnus effect as compared to a four-seam fastball since only two of the ball's seams cross the flight path; the pitch is delivered with a similar velocity as a four-seam fastball, but has a degree of sink.

このボタンはなに？

The rookie threw a sharp two-seam fastball that darted in on the hitter's hands, inducing a weak grounder.

ルーキーは、縫い目を蹄鉄状に握って回転がわずかに傾くことで飛行中に交差する縫い目が二つだけになり、フォーシームよりもマグヌス力が弱くなるツーシームを鋭く投げ、打者の手元に食い込み弱いゴロを打たせた。

詳細

意味（1）

(baseball) A pitch thrown with a grip in the "horseshoe" orientation of the ball, with the rotation at a slight angle resulting in less Magnus effect as compared to a four-seam fastball since only two of the ball's seams cross the flight path; the pitch is delivered with a similar velocity as a four-seam fastball, but has a degree of sink.

His two-seamer has a heavy sink and keeps the infielders busy.

詳細

two-seam fastballs （ plural ）