名詞 patency:

1. the openness (lack of obstruction) of a bodily passage or duct
2. the property of being easy to see and understand
   同義詞：obviousness, noticeability, noticeableness

pa.ten.cy

n.（名詞）
The state or quality of being obvious.
明顯，明白：顯然的狀態(tài)或性質(zhì)
Biology The state or quality of being open, expanded, or unblocked.
【生物學(xué)】 開放，不閉合：公開的、展開的或打開的狀態(tài)或性質(zhì)