12-letter words containing h, r, d, i, a
- echinodermal — (zoology) Relating or belonging to the echinoderms.
- eighth grade — the eighth year of school, when students are 12 to 14 years old
- elephantbird — Alternative form of elephant bird.
- enarthrodial — Relating to an enarthrosis.
- enfranchised — Simple past tense and past participle of enfranchise.
- ephemeridian — relating to ephemera
- etherealized — Simple past tense and past participle of etherealize.
- ethical drug — a drug which is only available legally with a doctor's prescription or consent
- exheredation — A disinheriting; disherison.
- fainthearted — lacking courage; cowardly; timorous.
- fairchild f8 — (processor) An 8-bit microprocessor. The processor itself had no address bus - program and data memory access were contained in separate units, which reduced the number of pins and the associated cost. It also featured 64 registers, accessed by the ISAR register in cells (register windows) of eight, which meant external RAM wasn't always needed for small applications. In addition, the 2-chip processor didn't need support chips, unlike others which needed seven or more. The F8 inspired other similar CPUs, such as the Intel 8048. The use of the ISAR register allowed a subroutine to be entered without saving a bunch of registers, speeding execution - the ISAR would just be changed. Special purpose registers were stored in the second cell (regs 9-15), and the first eight registers were accessed directly. The windowing concept was useful, but only the register pointed to by the ISAR could be accessed - to access other registers the ISAR was incremented or decremented through the window.
- farsightedly — In a farsighted manner.
- farthingdale — (British, dated, 13th-19th C.) A unit of area equal to one quarter of an acre.
- farthingland — a unit of land area, sometimes described as being equivalent to thirty acres
- fifth-grader — a student in the fifth grade of the American education system
- fire hydrant — a hydrant for use in extinguishing fires.
- fixed charge — an expense that cannot be modified.
- flash drying — Flash drying is a stage in a process to make something bigger, in which a paste-like feed is broken up and dried at the same time.
- foolhardiest — Superlative form of foolhardy.
- foreadmonish — (rare, transitive) To admonish beforehand, or before the act or event.
- forked chain — branched chain.
- four-in-hand — a long necktie to be tied in a slipknot with the ends left hanging.
- freight yard — a place on a rail network where freight trains are made up or broken up
- french drain — a drainage trench filled to ground level with fragments of brick, rock, etc.
- french india — the five small former French territories in India, including Chandernagor, Karikal, Pondicherry, and Yanaon on the E coast, and Mahé on the W coast.
- galahad, sir — Sir Arthurian Romance. the noblest and purest knight of the Round Table, son of Lancelot and Elaine: gained the Holy Grail.
- gizzard shad — a silvery herring, Dorosoma cepedianum, of eastern and central U.S. waters, that has a gizzardlike stomach.
- go hard with — to cause pain or difficulty to (someone)
- graduateship — the time or condition of being a graduate
- graft hybrid — a hybrid plant that is produced by grafting and that exhibits characters of both the stock and the scion.
- guardianship — the position and responsibilities of a guardian, especially toward a ward.
- hadrosaurine — Hadrosaurid.
- haemorrhoids — Plural form of haemorrhoid.
- haemosiderin — Alternative form of hemosiderin.
- hairdressers — Plural form of hairdresser.
- hairdressing — the act or process of cutting, combing out, doing up, or styling hair.
- hairpin bend — A hairpin bend or a hairpin is a very sharp bend in a road, where the road turns back in the opposite direction.
- hairsbreadth — a very small space or distance: We escaped an accident by a hairsbreadth.
- hammer drill — a rock drill operated by compressed air in which the boring bit is not attached to the reciprocating piston
- hand of writ — handwriting; penmanship.
- hand-deliver — to deliver in person or by messenger.
- hand-printed — (of numbers, letters, or designs) printed, or put on a surface, by hand rather than by machine
- hand-running — in unbroken succession; consecutively.
- hand-written — to write (something) by hand.
- handcrafting — Present participle of handcraft.
- handicappers — Plural form of handicapper.
- handicrafter — One who engages in handicrafts.
- handkerchief — a small piece of linen, silk, or other fabric, usually square, and used especially for wiping one's nose, eyes, face, etc., or for decorative purposes.
- handwringing — a physical expression of concern, distress, or guilt.
- hard feeling — resentment; ill will