Definition of altigraph in English:

altigraph

(also altograph)

noun

Science Fiction Aviation
  • An altimeter, especially one that produces a graphical record of its measurements.

Origin

Early 20th century; earliest use found in Circular United States Bureau of Standards. From alti- + -graph, probably after altimeter.

Pronunciation

altigraph

/ˈaltɪɡraf//ˈaltɪɡrɑːf//ˈɔːltɪɡrɑːf/