9-letter words containing c, h, a, d, o
- doomwatch — surveillance of the environment to warn of and prevent harm to it from human factors such as pollution or overpopulation
- douchebag — a small syringe having detachable nozzles for fluid injections, used chiefly for vaginal lavage and for enemas.
- doughface — a Northerner who sympathized with the South during the controversies over new territories and slavery before the Civil War.
- drop arch — a pointed arch having radii of length less than the span.
- ecohazard — any substance or activity that poses a threat to a habitat or an environment: Off-the-road motorcycling is an ecohazard to fragile desert habitats.
- foodchain — Alternative spelling of food chain.
- glochidia — glochid.
- hacendado — the owner of a hacienda.
- hack mode — (jargon) Engaged in hacking. A Zen-like state of total focus on The Problem that may be achieved when one is hacking (this is why every good hacker is part mystic). Ability to enter such concentration at will correlates strongly with wizardliness; it is one of the most important skills learned during larval stage. Sometimes amplified as "deep hack mode". Being yanked out of hack mode (see priority interrupt) may be experienced as a physical shock, and the sensation of being in hack mode is more than a little habituating. The intensity of this experience is probably by itself sufficient explanation for the existence of hackers, and explains why many resist being promoted out of positions where they can code. See also cyberspace. Some aspects of hackish etiquette will appear quite odd to an observer unaware of the high value placed on hack mode. For example, if someone appears at your door, it is perfectly okay to hold up a hand (without turning one's eyes away from the screen) to avoid being interrupted. One may read, type, and interact with the computer for quite some time before further acknowledging the other's presence (of course, he or she is reciprocally free to leave without a word). The understanding is that you might be in hack mode with a lot of delicate state in your head, and you dare not swap that context out until you have reached a good point to pause. See also juggling eggs.
- hammocked — Ensconced in a hammock.
- hard coal — anthracite.
- hard copy — copy, as computer output printed on paper, that can be read without using a special device (opposed to soft copy).
- hard core — pornography: obscene
- hard rock — heavy form of popular music
- hard-core — unswervingly committed; uncompromising; dedicated: a hard-core segregationist.
- hard-rock — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
- hardcourt — relating to a type of tennis court that is made of hard material
- hardcover — a book bound in cloth, leather, or the like, over stiff material: Hardcovers are more durable than paperbacks.
- head cold — a form of the common cold characterized especially by nasal congestion and sneezing.
- headcanon — (fandom slang) Elements and interpretations of a fictional universe accepted by an individual fan, but not found within or supported by the official canon.
- headcloth — any cloth for covering the head, as a turban or wimple.
- headcount — The act of counting how many people are present in a group.
- headlocks — Plural form of headlock.
- headstock — the part of a machine containing or directly supporting the moving or working parts, as the assembly supporting and driving the live spindle in a lathe.
- hexachord — a diatonic series of six tones having, in medieval music, a half step between the third and fourth tones and whole steps between the others.
- holandric — of or relating to a heritable trait appearing only in males (opposed to hologynic).
- hold back — to elude or evade by a sudden shift of position or by strategy: to dodge a blow; to dodge a question.
- holdbacks — Plural form of holdback.
- hole card — Stud Poker. the card dealt face down in the first round of a deal.
- homicidal — of or relating to homicide.
- hydrazoic — noting or pertaining to hydrazoic acid; triazoic.
- hydrocast — a process in which water is collected at various depths in a device with bottles clamped together, providing data on differing water characteristics.
- indochina — a peninsula in SE Asia, between the Bay of Bengal and the South China Sea, comprising Vietnam, Cambodia, Laos, Thailand, W Malaysia, and Burma (Myanmar).
- matchwood — wood suitable for match.
- octachord — any musical instrument with eight strings.
- octahedra — Plural form of octahedron.
- orcharder — One who owns or operates an orchard.
- phonecard — calling card (def 3).
- photocard — A photocard is a card with a person's photograph on it, which they can use to prove who they are.
- podotheca — the horny integument covering unfeathered portions of the legs and toes of most birds.
- quoad hoc — as much as this; to this extent.
- radicchio — a variety of chicory originating in Italy, having a compact head of reddish, white-streaked leaves: leaves and roots may be cooked or used raw in salads.
- reach rod — a rod for operating a remote piece of machinery, as a valve.
- rhapsodic — extravagantly enthusiastic; ecstatic.
- rock-hard — Something that is rock-hard is very hard indeed.
- rood arch — an archway at the center of a rood screen.
- roundarch — having rounded arches
- sachemdom — the office of a sachem
- sash cord — a cord for connecting a vertically sliding window sash with a counterweight.
- scaphopod — any mollusk of the class Scaphopoda, comprising the tooth shells.