self-dual
Word Rarity
Uncommon
Frequency: Zipf frequency 4.24 in modern English
12
Scrabble Score
8
Letters
6
Syllables
7
Unique Chars
Meaning
adj
Of a vector space, isomorphic to its dual space.
adj
Of a proposition that is equivalent to its dual.
adj
Of a graph or polyhedron, being the dual of itself.
Etymology
Etymology tree Proto-Indo-European *swé? Proto-Indo-European *selbʰ-der. Proto-Germanic *selbaz Old English self Old English self- Middle English self- English self- English dual English self-dual From self- + dual.
Phrases
anti-self-dual
non-self-dual