noun
Meaning 1
A reference cube of standard, unitary size, normally one centimetre long, or one inch long for older American versions, placed beside a rock or meteorite sample to show scale and orientation during photography. Four sides of the cube are marked N, S, E, and W, respectively, to indicate the cardinal points of the compass, and the other two sides are marked T and B, for top and bottom.
Definition source: English Wiktionary via Wiktextract
Topics: arts, geography, geology, hobbies, lifestyle, natural-sciences, photography
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided