9-letter words containing d, r, y, a
- gargoyled — (of a building) Having gargoyles carved into it.
- garlandry — a collection of garlands
- get ready — the state or condition of being ready.
- gradatory — (architecture) A series of steps from a cloister into a church.
- gradually — taking place, changing, moving, etc., by small degrees or little by little: gradual improvement in health.
- grandaddy — Alternative spelling of granddaddy.
- grandbaby — an infant grandchild.
- graveyard — a burial ground, often associated with smaller rural churches, as distinct from a larger urban or public cemetery.
- gravidity — pregnant1 (def 1).
- gray body — any body that emits radiation at each wavelength in a constant ratio less than unity to that emitted by a black body at the same temperature.
- gray card — a card of controlled reflectance held near a subject to approximate middle tones and used as a target for an exposure meter.
- gray code — (hardware) A binary sequence with the property that only one bit changes between any two consecutive elements (the two codes have a Hamming distance of one). The Gray code originated when digital logic circuits were built from vacuum tubes and electromechanical relays. Counters generated tremendous power demands and noise spikes when many bits changed at once. E.g. when incrementing a register containing 11111111, the back-EMF from the relays' collapsing magnetic fields required copious noise suppression. Using Gray code counters, any increment or decrement changed only one bit, regardless of the size of the number. Gray code can also be used to convert the angular position of a disk to digital form. A radial line of sensors reads the code off the surface of the disk and if the disk is half-way between two positions each sensor might read its bit from both positions at once but since only one bit differs between the two, the value read is guaranteed to be one of the two valid values rather than some third (invalid) combination (a glitch). One possible algorithm for generating a Gray code sequence is to toggle the lowest numbered bit that results in a new code each time. Here is a four bit Gray code sequence generated in this way: 0 0 0 0 0 0 0 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 1 1 0 1 0 1 0 1 0 0 1 1 0 0 1 1 0 1 1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 1 1 0 0 1 1 0 0 0 The codes were patented in 1953 by Frank Gray, a Bell Labs researcher.
- gray duck — any of several ducks in which certain immature or female plumages are predominantly gray, as the gadwall and the pintail.
- gray lady — a female worker in the American Red Cross who serves as a volunteer aide in medical services.
- gray mold — a disease of plants, characterized by a gray, furry coating on the decaying parts, caused by any of several fungi.
- graybeard — Sometimes Disparaging. a man whose beard is gray; old man; sage.
- grayhound — one of a breed of tall, slender, short-haired dogs, noted for its keen sight and swiftness.
- greybeard — Sometimes Disparaging. a man whose beard is gray; old man; sage.
- guardedly — cautious; careful; prudent: to be guarded in one's speech.
- haggardly — In a haggard manner.
- hairdryer — (chiefly UK) A small electrical appliance for drying hair, by generating a stream of hot air.
- hamadryad — Classical Mythology. a dryad who is the spirit of a particular tree.
- hamadryas — A large baboon, Papio hamadryas, from northern Africa and Arabia, that was sacred in ancient Egypt.
- handcarry — to carry or deliver by hand, as for security reasons: The ambassador hand-carried a message from the president.
- handywork — Dated form of handiwork.
- hard copy — copy, as computer output printed on paper, that can be read without using a special device (opposed to soft copy).
- heartedly — having a specified kind of heart (now used only in combination): hardhearted; sad-hearted.
- heyerdahl — Thor [too r] /tʊər/ (Show IPA), 1914–2002, Norwegian ethnologist and author.
- holidayer — vacationer.
- hornyhead — species of fish
- husbandry — the cultivation and production of edible crops or of animals for food; agriculture; farming.
- hybridoma — a hybrid cell made in the laboratory by fusing a normal cell with a cancer cell, usually a myeloma or lymphoma, in order to combine desired features of each, as the ability of the cancer cell to multiply rapidly with the ability of the normal cell to dictate the production of a specific antibody.
- hyde park — a public park in London, England.
- hyder ali — 1722–82, Islamic prince and military leader of India: ruler of Mysore 1759–82.
- hyderabad — a state in SE India, formed from portions of Chennai and Hyderabad states 1956. 105,963 sq. mi. (274,444 sq. km). Capital: Hyderabad.
- hydracids — Plural form of hydracid.
- hydraemia — the state of having an excess of water in the blood.
- hydramide — (organic compound) One of a group of crystalline bodies produced by the action of ammonia on certain aldehydes.
- hydramine — an amine derived from a glycol in which one hydroxyl is replaced by an amino group.
- hydrangea — any shrub belonging to the genus Hydrangea, of the saxifrage family, several species of which are cultivated for their large, showy flower clusters of white, pink, or blue.
- hydranths — Plural form of hydranth.
- hydrastis — goldenseal (def 2).
- hydrating — Present participle of hydrate.
- hydration — any of a class of compounds containing chemically combined water. In the case of some hydrates, as washing soda, Na 2 CO 3 ⋅10H 2 O, the water is loosely held and is easily lost on heating; in others, as sulfuric acid, SO 3 ⋅H 2 O, or H 2 SO 4 , it is strongly held as water of constitution.
- hydraulic — operated by, moved by, or employing water or other liquids in motion.
- hydraulus — a pipe organ of ancient Greece and Rome using water pressure to maintain the air supply.
- hydrazide — (chemistry) any compound derived from an oxoacid by replacing the hydroxide group with -NHNH2 or derived forms -NRNR2.
- hydrazine — Also called diamine. a colorless, oily, fuming liquid, N 2 H 4 , that is a weak base in solution and forms a large number of salts resembling ammonium salts: used chiefly as a reducing agent and a jet-propulsion fuel.
- hydrazoic — noting or pertaining to hydrazoic acid; triazoic.
- hydrazone — any of a class of compounds containing the group >C=NNH 2 .