Serrations sentence example
The stem of the clamp has serrations for quick height adjustment within the collar and the screw is used to apply the final pressure.
Look for added improvements like small serrations on the scissors blade to help grip finer materials.
The feelers are generally simple in type, rarely showing serrations or prominent appendages; but one or two basal segments are frequently differentiated to form an elongate " scape," the remaining segments - carried at an elbowed angle to the scapemaking up the " flagellum "; the segments of the flagellum often bear complex sensory organs.
This envelope is also sharply defined, but its normal appearance is compared to the serrations which blades of grass show on the skyline of a hill, and it is disturbed by the outbursts, called prominences, of which details are given below.Advertisement