泛指用以調節河水或其他容水空間流量，以控制洩洪量的屏障。主要專指水閘的低處閘門。

防洪閘(低閘門)　(P,,U,繁體中文-偏好,D,,)
防洪閘門(,U,繁體中文-非偏好,UF,U,U)
fang hung cha (P,,U,韋氏拼音-偏好,UF,,)
fáng hóng zhá (P,,U,漢語拼音-偏好,UF,,)
fang hong zha (P,,U,漢語拼音(無聲調)-偏好,UF,,)
floodgates(lower gates)　(P,,U,美式英語-偏好,D,U,PN)
floodgate(lower gate)　(,U,美式英語-非偏好,AD,U,SN)
gates, flood(lower gate)　(,U,美式英語-非偏好,UF,U,N)
flood-gates(lower gates)　(P,,U,British English-偏好,D,U,PN)
flood-gate(lower gate)　(,U,British English-非偏好,AD,U,SN)

藝術與建築詞典根目錄
....物件層面
........組件 (層級名)
............成分
................<依特定背景區分之組件>
....................建築元素
........................<開口與開口結構>
............................開口
................................<依形式區分之開口>
....................................<通道與通道構造>
........................................<通道構造>
............................................<閘門與閘門構造>
................................................閘門
....................................................防洪閘 (低閘門)

distinguished from....	水門(門閘結構建築)
meaning/usage overlaps with....	水閘(河道調節)
meaning/usage overlaps with....	水閘門(水流調節構造)

英文....	Generally refers to barriers used to regulate the flow of water in a river or other body of water in order to control flooding. Specifically refers to the lower gates of a lock.

防洪閘(低閘門)............	[AS-Academia Sinica]
.................	朗文當代大辭典 654
.................	智慧藏百科全書網 June 23, 2012
防洪閘門............	[AS-Academia Sinica]
.................	經濟部智慧財產局－本國專利技術名詞中英對照查詢資料庫 October 5, 2012
floodgates(lower gates)............	[VP]
.................	CDMARC Subjects: LCSH (1988-)
.................	Webster's Third New International Dictionary (1961)
.................	AATA database (1995-) 153395 checked 26 January 2012
floodgate(lower gate)............	[VP]
.................	Chenhall, Revised Nomenclature (1988)
gates, flood(lower gate)............	[VP]
.................	Getty Vocabulary Program rules
flood-gates(lower gates)............	[VP]
.................	Oxford English Dictionary Online (2002-) accessed 20 October 2007
flood-gate(lower gate)............	[VP]
.................	Oxford English Dictionary Online (2002-)
Subject:............	[GCI]
.................	AATA database (1995-) 153395 checked 26 January 2012

Getty AAT: 300266765 Getty AAT: http://www.getty.edu/vow/AATFullDisplay?find=costume&logic=AND¬e=&subjectid=300266765
聯合目錄： 防洪閘 、防洪閘門 、fang hung cha 、fáng hóng zhá 、fang hong zha 、floodgates 、floodgate 、gates, flood 、flood-gates 、flood-gate