Meanings
ultima1
plural ultimas
- uncountablebusinessA third-order measure of derivative price sensitivity, expressed as the rate of change of vomma with respect to changes in the volatility of the underlying asset.
Synonyms: DvommaDvol
Ultima2
Ultima3
- The larger lobe of the trans-Neptunian object Ultima Thule, a contact binary object.
Ultima and Thule have similar colors with measured albedos ∼0.06, indicating that UT is a typical member of the Cold Classical Kuiper Belt class of objects.
2020, Umurhan, O. M., J. T. Keane, R. A. Beyer, M. Bird, I. Linscott, S. B. Porter, J. R. Spencer et al., “Thermophysical, Gravitational, and Geomorphology Properties of 2014 MU69”, in Abstracts of the 235th AAS Meeting (Honolulu, HI), page 7171 more example
For the purposes of discussion, MU₆₉’s larger and smaller lobes have been informally designated “Ultima” and “Thule,” respectively, by the New Horizons team. Ultima and Thule have best-fit measured diameters of ~19.5 and ~14.2km, respectively, with errors of only a few percent at this time.
2019 January 24, Stern, S. A., J. R. Spencer, H. A. Weaver, C. B. Olkin, J. M. Moore, W. Grundy, R. Gladstone et al., “Overview of initial results from the reconnaissance flyby of a Kuiper Belt planetesimal: 2014 MU69”, in arXiv
Ultima4
Synonyms & antonyms
nounA third-order measure of derivative price sensitivity, expressed as the rate of change of vomma with respect to changes in the volatility of the underlying asset.
proper nounSynonym of Baroque (“chess variant”).
Origin
Ultima · proper noun
Clipping of Ultima Thule. Coined in January 2019 by the NASA team investigators of the New Horizons program (see quotations below).
Full word history & related roots →Translations
Finnish ultima
- ultimafinal syllable
German Endsilbe, Schlusssilbe
- Endsilbefinal syllable
- Schlusssilbefinal syllable
- letzte Silbefinal syllable
- Ultimafinal syllable
Greek λήγουσα
- λήγουσα (lígousa)final syllable
Rhymes & wordplay
Anagrams
Cite this entry
ultima. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/ultima
“ultima.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ultima. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “ultima,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/ultima.
Source: ultima on Wiktionary, CC BY-SA 4.0.