neuter

noun 0.902

spaying

noun 0.757

castration

noun 0.733

gonadectomy

noun 0.683

vasectomy

noun 0.681

castrate

noun 0.672

circumcision

noun 0.630

orchiectomy

noun 0.618

ovariectomy

noun 0.605

gelding

noun 0.603

sterilization

noun 0.583

penectomy

noun 0.583

orchidectomy

noun 0.564

declawing

noun 0.561

castrator

noun 0.561

emasculation

noun 0.557

clitoridectomy

noun 0.545

circumcised

noun 0.540

adrenalectomy

noun 0.534

mutilation

noun 0.533

neutral

noun 0.533

trimming

noun 0.529

nephrectomy

noun 0.528

oophorectomy

noun 0.524

vaginectomy

noun 0.524

omentectomy

noun 0.523

neurotomy

noun 0.521

turbinectomy

noun 0.517

denaturing

noun 0.516

prostatectomy

noun 0.515

neutrophil

noun 0.514

necking

noun 0.513

nulling

noun 0.510

neutropenia

noun 0.508

unmanning

noun 0.507

severing

noun 0.506

neutron

noun 0.505

sterility

noun 0.503

cystectomy

noun 0.501

snipping

noun 0.500