optigraph

Fetched 2026-10-26 (cache).

Synonyms: epigraph, antigraph, omnigraph, altigraph, actigraph

Antonyms: epigraph, antigraph, omnigraph, altigraph, actigraph

Related words from Datamuse; suggestions, not definitions.

Noun

1. A [[telescope]] with a [[diagonal]] [[eyepiece]], suspended [[vertical]]ly in [[gimbal]]s by the object end beneath a fixed diagonal plane [[mirror]]. It is used for [[delineate|delineating]] [[landscape]]s by means of an attached [[pencil]].
2. {{rfdef|en}} <!--kind of microscope-->

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.