Term: zona pellucida: thick membrane around the mammalian ovum; can be penetrated by one sperm in the fertilization process; usually remains around the fertilized egg until it is implanted in the wall of the uterus
Candidate hypernym: zone: (anatomy) any encircling or beltlike structure → 1
Candidate hypernym: rainbow shower: deciduous ornamental hybrid of southeastern Asia and Hawaii having racemes of flowers ranging in color from cream-colored to orange and red → 0
Candidate hypernym: datura: thorn apple → 0
Candidate hypernym: butterhead lettuce: lettuce with relatively soft leaves in a loose head; easily broken or bruised → 0
Candidate hypernym: length: the property of being the extent of something from beginning to end → 0
Candidate hypernym: hanger: anything from which something can be hung → 0
Candidate hypernym: blood group: human blood cells (usually just the red blood cells) that have the same antigens → 0
Candidate hypernym: oscillator: generator that produces sonic oscillations or alternating current → 0
Candidate hypernym: stage set: representation consisting of the scenery and other properties used to identify the location of a dramatic production → 0
Candidate hypernym: connecticuter: a native or resident of Connecticut → 0
Candidate hypernym: mediterranean: the largest inland sea; between Europe and Africa and Asia → 0