Meaning of non-orientability in English:

non-orientability

Pronunciation /ˌnɒnɔːrɪˌɛntəˈbɪlɪti/ /ˌnɒnɒrɪˌɛntəˈbɪlɪti/

noun

Mathematics
  • The property of being non-orientable.

Origin

1930s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America. From non- + orientability, after non-orientable.