frustum

English

Wikipedia

Etymology

Latin frustum (“morsel”).

Pronunciation

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Noun

frustum (plural frustums or frusta)

1. A cone or pyramid whose tip has been truncated by a plane parallel to its base.
2. A region of a sphere delimited by two parallel planes.

Synonyms

• (area of a sphere): zone

Usage notes

The spelling frustrum is erroneous, and is by incorrect analogy with frustrate, also of Latin origin.

Translations

cone or pyramid

• Finnish: katkaistu kartio (fi)
• German: (mathematics) Kegelstumpf (de) m, (mathematics) Stumpf (de) m, (computing, mathematics) Pyramidenstumpf (de) m
• Greek: (cone) κόλουρος κώνος (el) (kólouros kónos) m, (pyramid) κόλουρη πυραμίδα (el) (kólouri pyramída) f

• Icelandic: stúfur (is) m
• Italian: tronco (it) m
• Russian: усечённая пирамида (ru) (us'ečónnaja piramída) f pyramid, усечённый конус (ru) (us'ečónnyj kónus) m cone
• Turkish: (mathematics) kesik koni (tr)

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Latin

Noun

frustum (genitive frustī); n, second declension

1. a piece, bit; crumb, morsel, scrap of food

Inflection

Number	Singular	Plural
nominative	frustum	frusta
genitive	frustī	frustōrum
dative	frustō	frustīs
accusative	frustum	frusta
ablative	frustō	frustīs
vocative	frustum	frusta

Synonyms

• (piece): fragmentum, segmentum

Descendants

• English: frustum