Search Result for "fixity": 
Wordnet 3.0

NOUN (2)

1. the quality of being fixed in place as by some firm attachment;
[syn: fastness, fixedness, fixity, fixture, secureness]

2. the quality of being incapable of mutation;
- Example: "Darwin challenged the fixity of species"
[syn: immutability, immutableness, fixity]



The Collaborative International Dictionary of English v.0.48:

Fixity \Fix"i*ty\ (-[i^]*t[y^]), n. [Cf. F. fixit['e].]
   1. Fixedness; as, fixity of tenure; also, that which is
      fixed.
      [1913 Webster]

   2. Coherence of parts. --Sir I. Newton.
      [1913 Webster]


WordNet (r) 3.0 (2006):

fixity
    n 1: the quality of being fixed in place as by some firm
         attachment [syn: fastness, fixedness, fixity,
         fixture, secureness] [ant: looseness]
    2: the quality of being incapable of mutation; "Darwin
       challenged the fixity of species" [syn: immutability,
       immutableness, fixity] [ant: mutability, mutableness]