I. ˈdī-ə-ˌgram noun
Etymology: Greek diagramma, from diagraphein to mark out by lines, from dia- + graphein to write — more at carve
Date: 1619
1. : a graphic design that explains rather than represents ; especially : a drawing that shows arrangement and relations (as of parts)
2. : a line drawing made for mathematical or scientific purposes
• di·a·gram·ma·ble -ˌgra-mə-bəl adjective
• di·a·gram·mat·ic ˌdī-ə-grə-ˈma-tik also di·a·gram·mat·i·cal -ˈma-ti-kəl adjective
• di·a·gram·mat·i·cal·ly -ti-k(ə-)lē adverb
II. transitive verb
( -grammed or di·a·gramed -ˌgramd ; -gram·ming or di·a·gram·ing -ˌgra-miŋ)
Date: 1785
: to represent by or put into the form of a diagram
diagram a sentence
diagram a football play