12-letter words containing a, d, m, s
- dysrhythmias — Plural form of dysrhythmia.
- dystopianism — a society characterized by human misery, as squalor, oppression, disease, and overcrowding.
- emerald isle — Ireland
- enamoredness — Quality of being enamored; love; infatuation.
- enlisted man — military: male soldier
- false mildew — downy mildew (def 1).
- false-mildew — Also called false mildew. any fungus of the family Peronosporaceae, causing many plant diseases and producing a white, downy mass of conidiophores, usually on the under surface of the leaves of the host plant.
- familiarised — Simple past tense and past participle of familiarise.
- florida moss — Spanish moss.
- foreadmonish — (rare, transitive) To admonish beforehand, or before the act or event.
- formal dress — clothing for elegant or solemn occasions
- fort madison — a city in SE Iowa, on the Mississippi.
- fundamentals — serving as, or being an essential part of, a foundation or basis; basic; underlying: fundamental principles; the fundamental structure.
- gas dynamics — the study of the dynamic properties of gases and their thermal effects.
- gastrodermal — the inner cell layer of the body of an invertebrate.
- gastrodermis — the inner cell layer of the body of an invertebrate.
- gendarmeries — Plural form of gendarmerie.
- gerrymanders — Plural form of gerrymander.
- gladsomeness — (archaic) gladness.
- gormandising — Present participle of gormandise.
- gormandizers — gourmandise1 .
- grand master — the head of a military order of knighthood, a lodge, fraternal order, or the like.
- grandmasters — Plural form of grandmaster.
- grandmothers — Plural form of grandmother.
- guesstimated — Simple past tense and past participle of guesstimate.
- gypsum board — wallboard composed primarily of gypsum and often used as sheathing.
- haemorrhoids — Plural form of haemorrhoid.
- haemosiderin — Alternative form of hemosiderin.
- hammarskjold — Dag Hjalmar [dahg yahl-mahr] /dɑg ˈyɑl mɑr/ (Show IPA), 1905–61, Swedish statesman: Secretary General of the United Nations 1953–61; Nobel Peace Prize 1961.
- handsomeness — The quality of being handsome.
- head massage — massage of the head
- headforemost — headfirst (def 1).
- headmasterly — In a manner befitting a headmaster.
- headmistress — a woman in charge of a private school.
- hemihydrates — Plural form of hemihydrate.
- hemodialyses — Plural form of hemodialysis.
- hemodialysis — dialysis of the blood, especially with an artificial kidney, for the removal of waste products.
- hemodynamics — the branch of physiology dealing with the forces involved in the circulation of the blood.
- hidrocystoma — An adenoma of the sweat glands.
- hit and miss — unpredictable, unreliable
- hit-and-miss — sometimes successful or rewarding and sometimes not.
- home address — the address of one's house or flat
- homesteaders — Plural form of homesteader.
- homesteading — a dwelling with its land and buildings, occupied by the owner as a home and exempted by a homestead law from seizure or sale for debt.
- homodynamous — (biology) Pertaining to, or involving, homodynamy.
- human shield — a person or group of people located or intentionally placed in a potential line of fire or in an area likely to be attacked.
- hydrargyrism — mercurialism.
- hydromedusae — Irregular plural form of hydromedusa.
- hypogonadism — diminished hormonal or reproductive functioning in the testes or the ovaries.
- icbm address — (networking, humour) (Or "missile address") The form used to register a site with the Usenet mapping project includes a space for longitude and latitude, preferably to seconds-of-arc accuracy. This is actually used for generating geographically-correct maps of Usenet links on a plotter; however, it has become traditional to refer to this as one's "ICBM address" or "missile address", and many people include it in their sig block with that name. (A real missile address would include target altitude.)