3. A chronoscope.
CHRONOGRAPHER
Chro*nog"ra*pher, n.
Defn: One who writes a chronography; a chronologer. Tooke.
CHRONOGRAPHIC
Chron`o*graph"ic, a.
Defn: Of or pertaining to a chronograph.
CHRONOGRAPHY
Chro*nog"ra*phy, n. Etym: [Gr. Chronograph.]
Defn: A description or record of past time; history. [Obs.] Bp. Hall.
CHRONOLOGER
Chro*nol"o*ger, n.
Defn: Same as Chronologist.
CHRONOLOGIC; CHRONOLOGICAL
Chron`o*log"ic, Chron`o*log"ic*al, a. Etym: [Gr.