I found this little gem on my beloved Care2.com website. I had never heard that the word “pulse” had more than one meaning!!! Hip hip huzzah for discovery!
“A pulse, sometimes called a “grain legume”, is an annual leguminous crop yielding from one to twelve seeds of variable size, shape, and color within a pod. Pulses are used as food for humans and other animals. Included in the pulses are: dry beans like pinto beans, kidney beans and navy beans; dry peas; lentils; and others.”