I. ˈ ̷ ̷ ̷ ̷+ˌgraf noun
( -s )
Etymology: chron- + -graph
: an instrument for measuring and recording time:
a. : an instrument consisting of a recording apparatus (as a stylus and revolving drum) connected with a clock or chronometer and used for recording the precise clock time of astronomical and other occurrences
b. : a watch having in addition to conventional hour, minute, and second hands a center sweep-second hand that can be stopped, started, or reset to zero and that indicates intervals of time as small as 1/5 second
c. : an instrument used for measuring the time of flight of projectiles
• chron·o·graph·ic | ̷ ̷ ̷ ̷|grafik adjective
• chron·o·graph·i·cal·ly -fə̇k(ə)lē adverb
II. transitive verb
( -ed/-ing/-s )
: to measure (velocity) by means of a chronograph (sense c)