18-letter words that end in onal
- circumnavigational — Relating to circumnavigation.
- ecma international — (body) (Formerly European Computer Manufacturers Association) An industry association founded in 1961 and dedicated to the standardisation of information and communication systems. ECMA edits standards and technical reports. All ECMA publications are available free of charge. The best known ECMA standard is ECMA 262, defining the scripting language ECMAScript.
- finite-dimensional — (of a vector space) having a basis consisting of a finite number of elements.
- interinstitutional — Between institutions.
- microgravitational — Of or pertaining to microgravitation.
- non-conversational — able or ready to converse; given to conversation.
- non-denominational — of or relating to a denomination or denominations.
- nonconfrontational — Tending to deal with situations calmly and diplomatically; not aggressive or hostile.
- principal diagonal — a diagonal line or plane.
- secondary diagonal — a diagonal line or plane.
- self-instructional — pertaining to or constituting learning materials and conditions arranged so that students can proceed to learn on their own with little or no supervision.
- the grand national — an annual steeplechase run at Aintree, Liverpool, since 1839
- unix international — (body) (UI) A consortium including Sun, AT&T and others formed to promote an open environment based on Unix System V, including the Open Look windowing system.
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