| H | hours | 小时 |
| H | hydrogen | 氢 |
| H | height | 高度 |
| H | Hexadecimal | 十六进制 |
| H | hecto- | 百 |
| H | Federal Reserve Bank of Saint Louis, Missouri (designates original point of circulation of a dollar bill) | 密苏里州圣路易斯联邦储备银行(指定美元纸币的原始流通点) |
| H | heelstick | 赫尔斯蒂克 |
| H | Home Plate | 首页 |
| H | heavy chain | 重型链条 |
| H | Heart | 心 |
| H | the secondary constriction of a chromosome | 染色体的二次收缩 |
| H | degree of hydrolysis | 水解程度 |
| H | host-range mutant | 宿主范围突变体 |
| H | heparin | 肝素 |
| H | human response | 人的反应 |
| H | heat content | 热含量 |
| H | harringtonine | 三尖杉酯碱 |
| H | heteromorphic regions | 异形区 |
| H | Holder (football) | 支架(足球) |
| H | hypo | 低氧 |
| H | heritability | 遗传力 |
| H | Hinge (philately) | 铰链(集邮) |
| H | Hold (baseball; relief pitcher stat) | 保持(棒球;救援投手统计) |
| H | histocompatibility | 组织相容性 |
| H | Husband | 丈夫 |
| H | hemisphere | 半球 |
| H | hygiene | 卫生 |
| H | heart disease | 心脏病 |
| H | mustard gas | 芥末气 |
| H | planck's constant | 普朗克(氏)量子常数 |
| H | hypophysis | 垂体 |
| H | hernia | 疝 |
| H | Histamine | 组胺 |
| H | hexamethylenetetramine | 六亚甲基四胺 |
| H | Hardness | 硬度 |
| H | Hecto | 赫托 |
| H | hypercalciuria | 高钙尿症 |
| H | hemagglutination | 血凝作用 |
| H | secondary constriction | 二次收缩 |
| H | holzknecht's unit | 霍耳茨克内希特(氏)单位 |
| H | Helicobacter (genus of H. pylori bacteria) | 幽门螺杆菌(幽门螺杆菌属) |
| H | Himalayan (rabbit breed) | 喜马拉雅(兔子品种) |
| H | Help! (Beatles song) | 帮助(披头士歌曲) |
| H | Hotel (aviation letter code) | 酒店(航空字母代码) |
| H | Kruskal-Wallis Test (statistics; analysis) | Kruskal-Wallis检验(统计;分析) |
| H | Homo- (Latin: human-taxonomic genus) | 人属(拉丁语:人类分类属) |
| H | Høyre (Norwegian left wing party) | Høyre (Norwegian left wing party) |
| H | Magnetic Field (physics) | 磁场(物理学) |
| H | Hologram (Red Dwarf sitcom) | 全息图(红矮人情景喜剧) |
| H | Heer (German) | Heer(德语) |
| H | Hurricane(s) | 飓风(s) |
| H | Winchester Repeating Arms Company (headstamp for rim-fire cartridges) | 温彻斯特重复武器公司 |
| H | Hearts (playing cards) | 红心(扑克牌) |
| H | Half Size Blue Print | 半码蓝色印花 |
| H | Haze (weather reports) | 霾(天气报告) |
| H | Helicopter or Search/Rescue (US military aircraft designation; as in H-1) | 直升飞机或搜索/营救(美国军用飞机设计;在H-1) |
| H | Histidine (amino acid) | 组氨酸(氨基酸) |
| H | Horn (music) | 喇叭(音乐) |
| H | Horizontal (polarization) | 水平(极化) |
| H | High/Height | 高/高度 |
| H | Holy | 神圣的 |
| H | haustus | 豪斯特斯牌手表 |
| H | Histidine | 组氨酸 |
| H | Hacker | 黑客 |
| H | Half | 一半 |
| H | Hell | 地狱 |
| H | hyperphoria | 超视野 |
| H | hypothalamus | 下丘脑 |
| H | hypermetropia | 远视 |
| H | Enthalpy | 焓 |
| H | High Risk | 高风险 |
| H | Home | 家 |
| H | Hard | 坚固的 |
| H | Metro Montreal (postal code designation, Canada) | 蒙特利尔地铁(邮政编码指定,加拿大) |
| H | C Language Header File (file name extension) | C语言头文件(文件扩展名) |
| H | Hyundai (automobile brand) | 现代(汽车品牌) |
| H | Acknowledgement of Receipt (Scott Catalogue prefix; philately) | 回执(斯科特目录前缀;集邮) |
| H | Hentai (anime) | 亨泰(动漫) |
| H | Hyperphoria (condition of one eye being higher than the other) | 过度斜视(一只眼睛高于另一只眼睛的情况) |
| H | Hungary (International Auto Identification) | 匈牙利(国际汽车识别) |
| H | Historical (action code) | 历史(操作代码) |
| H | Hijrah | 希吉拉 |
| H | Hamiltonian (physics) | 哈密顿量(物理学) |
| H | Sulfur Mustard (blister warfare agent) | 硫芥(水泡战剂) |
| H | US DoT tire speed rating (130 mph) | 美国DoT轮胎额定速度(130英里\/小时) |
| H | Hecto- (10^3, SI Prefix) | Hector-(10^3,SI前缀) |
| H | Undenominated United States Stamp (33 cents, introduced 10 Jan 1999) | 未提名的美国邮票(33美分,1999年1月10日推出) |
| H | Hit (Baseball) | 命中(棒球) |