pithy wood - polyspermic fecundation
- pithy wood
- pitohui
- pitpit
- pitta
- pitted
- pitted apple beetle
- pitted quillwort
- pitted vessel
- pitted-shelle turtle
- pitted-shelled turtle
- pittosporum beetle
- pittosporum bug
- pittosporum leaf miner
- pittosporum longicom
- pittosporum scale
- pituicyte
- pituitary
- pituitary adrenotrophic hormone
- pituitary body
- pituitary cell
- pituitary fossa
- pituitary gland
- pituitary gonadotropin
- pituitary hormone
- pituitary organ
- pituitary stalk
- pituitary-adrenal axis
- Pityogenes
- Pityogenes bidentatus
- Pityogenes bistridentatus
- Pityogenes chalcographus
- Pityogenes irkutensis
- Pityogenes quadridens
- Pityogenes trepanatus
- Pityokteines curvidens
- Pityokteines spinidens
- Pityokteines vorontzowi
- Pityophthorus
- Pityophthorus glabrabus
- Pityophthorus lichtensteini
