[noun] restraint that attaches to something or holds something in place Synonyms:fastener, fastening, holdfast
[noun] the sterilization of an animal; "they took him to the vet for neutering" Synonyms:neutering, altering
[noun] (histology) the preservation and hardening of a tissue sample to retain as nearly as possible the same relations they had in the living body Synonyms:fixation
