also: スモッグ
noun
A loose, lightweight overgarment worn to protect clothing, e.g. by artists or in certain work settings.
絵を描くときはいつもスモックを着ている。
I always wear a smock when I paint.
noun
smocking
A decorative embroidery technique in which fabric is gathered and stitched in patterns; also the resulting gathered fabric. Often used in sewing and fashion contexts.
See also:
このブラウスは胸元にスモックが入っている。
This blouse has smocking at the bust.