curl vs ulna

curl

noun
  • Any exercise performed by bending the arm, wrist, or leg on the exertion against resistance, especially those that train the biceps. 

  • A spin making the trajectory of an object curve. 

  • Movement of a moving rock away from a straight line. 

  • {{ux|en|The curl of the vector field ⃑F(x,y,z) is the vector field operatorname curl,⃑F≡⃑∇⨯⃑F=((∂F_z)/(∂y)-(∂F_y)/(∂z),(∂F_x)/(∂z)-(∂F_z)/(∂x),(∂F_y)/(∂x)-(∂F_x)/(∂y)).}} 

  • The vector operator, denoted rm curl; or ⃑∇⨯⃑(·), that generates this field. 

  • A curved stroke or shape. 

  • Any of various diseases of plants causing the leaves or shoots to curl up; often specifically the potato curl. 

  • A pattern where the receiver appears to be running a fly pattern but after a set number of steps or yards quickly stops and turns around, looking for a pass. 

  • The vector field denoting the rotationality of a given vector field. 

  • The contrasting light and dark figure seen in wood used for stringed instrument making; the flame. 

  • A curving piece or lock of hair; a ringlet. 

verb
  • To cause to move in a curve. 

  • To shape (the brim of a hat) into a curve. 

  • To move in curves. 

  • To take part in the sport of curling. 

  • To twist or form (the hair, etc.) into ringlets. 

  • To exercise by bending the arm, wrist, or leg on the exertion against resistance, especially of the biceps. 

  • To make into a curl or spiral. 

  • To assume the shape of a curl or spiral. 

  • To deck with, or as if with, curls; to ornament. 

  • To raise in waves or undulations; to ripple. 

ulna

noun
  • The bone of the forearm that extends from the elbow to the wrist on the side opposite to the thumb, corresponding to the fibula of the hind limb. Also, the corresponding bone in the forelimb of any vertebrate. 

How often have the words curl and ulna occurred in a corpus of books? (source: Google Ngram Viewer )