S: (n) topographic point, place, spot (a point located with respect to surface features of some region) "this is a nice place for a picnic"; "a bright spot on a planet"
S: (n) point (the precise location of something; a spatially limited location) "she walked to a point where she could survey the whole street"
S: (n) 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)