divet

Noun

divot (plural divots)

1. (especially) A torn-up piece of turf, especially by a golf club in making a stroke or by a horse's hoof.
   • Usually her voice came over the wire as something fresh and cool, as if a divot from a green golf-links had come sailing in at the office window, but this morning it seemed harsh and dry.1925, F[rancis] Scott Fitzgerald, chapter 8, in The Great Gatsby, New York, N.Y.: Charles Scribner’s Sons, published 1953, →ISBN, page 155
2. A disruption in an otherwise smooth contour.
   • In these coldest hours before dawn, from three until six, I take up my knife again and hack at the chockstone. I continue to make minimal but visible progress in the divot.2004, Aron Ralston, 127 Hours: Between a Rock and a Hard Place, Simon and Schuster, published 2011, page 68
3. A drop in a graph between two linear portions (example)

See all 4 meanings of divot