frustum
noun
frustum is spelled F-R-U-S-T-U-M. The wrong spelling people search most is frustrum: about 170 Bing searches a month in the United States (September 2025 to August 2026), about 3 in 10 of all searches for the word. Frustum is a noun meaning “A cone or pyramid whose tip has been truncated by a plane parallel to its base”. The plural of frustum is frustums or frusta.
How do you spell frustum?
Frustum is spelled F-R-U-S-T-U-M. One wrong spelling is searched or written often enough to measure; together they are about 3 in 10 of the searches for frustum in either form.
Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.
What does frustum mean?
noun
- 1
A cone or pyramid whose tip has been truncated by a plane parallel to its base.
- 2
A portion of a sphere, or in general any solid, delimited by two parallel planes.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce frustum?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-frustum.ogg, Wikimedia Commons (author and licence on each file's page).
Forms of frustum
- frustums plural
- frusta plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is frustum?
Frustum appears about once in every 23 million words in written English, the 145,125th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Frustum in Spanish, French, German and Portuguese
In the sense truncated cone or pyramid:
| Language | Words |
|---|---|
| French | tronc |
| German | Kegelstumpf, Stumpf, Pyramidenstumpf |
| Spanish | tronco, tronco de geometría, tronco geométrico |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does frustum come from?
Borrowed from Latin frustum (“morsel”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).