regular-duty
Describing a tennis ball having a thinner felt woven more tightly around the ball's…Describing a tennis ball having a thinner felt woven more tightly around the ball's core, designed for softer court surfaces such as clay.
Meaning
1 senses(not comparable)Describing a tennis ball having a thinner felt woven more tightly around the ball's core, designed for softer court surfaces such as clay.
Coordinate term: extra-duty