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13-letter words containing d, r, y

  • hydrogen bomb — a bomb, more powerful than an atomic bomb, that derives its explosive energy from the thermonuclear fusion reaction of hydrogen isotopes.
  • hydrogen bond — a type of chemical bond in which a hydrogen atom that has a covalent link with one of the electronegative atoms (F, N, O) forms an electrostatic link with another electronegative atom in the same or another molecule.
  • hydrogenating — Present participle of hydrogenate.
  • hydrogenation — to combine or treat with hydrogen, especially to add hydrogen to the molecule of (an unsaturated organic compound).
  • hydrogenizing — Present participle of hydrogenize.
  • hydrokinetics — the branch of hydrodynamics that deals with the laws governing liquids or gases in motion.
  • hydromedusoid — a jellyfish or something resembling a jellyfish that lives in water
  • hydromorphone — A synthetic narcotic analgesic, (4,5 alpha-epoxy-3-hydroxy-17-methyl morphinan-6-one), similar to morphine and heroin. It is used for moderate to severe pain under the trade name Dilaudid.
  • hydronitrogen — a chemical compound containing only hydrogen and nitrogen.
  • hydronium ion — the hydrogen ion bonded to a molecule of water, H 3 O + , the form in which hydrogen ions are found in aqueous solution.
  • hydropathical — Alternative form of hydropathic.
  • hydroperoxide — any chemical compound having the general formula, ROOH, where R is an element or an organic group.
  • hydrostatical — Alternative form of hydrostatic.
  • hydrosulfides — Plural form of hydrosulfide.
  • hydrosulfuric — (chemistry) Derived from hydrogen sulfide considered as hydrosulfuric acid.
  • hydrosulphate — a salt formed by the direct union of sulfuric acid with an organic base, especially an alkaloid, and usually more soluble than the base.
  • hydrosulphide — a compound containing the univalent group –HS.
  • hydrosulphite — hyposulfite (def 1).
  • hydrotelluric — (chemistry) Formed by hydrogen and tellurium.
  • hydroxide ion — the anion OH−.
  • hydroxyketone — a ketone containing a hydroxyl group.
  • hydroxylamine — an unstable, weakly basic, crystalline compound, NH 3 O, used as a reducing agent, analytical reagent, and chemical intermediate.
  • hydroxylation — (organic chemistry) The introduction of a hydroxyl group into a molecule, especially by the replacement of a hydrogen atom.
  • hydroxymethyl — (organic chemistry, especially in combination) The univalent radical HO-CH2-.
  • hyperadenosis — abnormal enlargement of the glands, especially of the lymph nodes.
  • hyperboloidal — Having the shape or form of a hyperboloid.
  • hyperdactylia — the presence of extra fingers or toes.
  • hyperdicrotic — having or pertaining to a double beat of the pulse for each beat of the heart.
  • hyperextended — Extremely long; extended greatly.
  • hyperhidrosis — abnormally excessive sweating.
  • hyperinflated — to subject to hyperinflation: hyperinflated prices.
  • hyperlordosis — Particularly severe lordosis.
  • hyperproducer — an increased or rapid producer
  • hypertrophied — abnormal enlargement of a part or organ; excessive growth.
  • hypo-chondria — Also, hypochondriasis [hahy-poh-kuh n-drahy-uh-sis] /ˌhaɪ poʊ kənˈdraɪ ə sɪs/ (Show IPA). Psychiatry. an excessive preoccupation with one's health, usually focusing on some particular symptom, as cardiac or gastric problems.
  • hypochondriac — Also, hypochondriacal, H05/H0509000 hahy-poh-kuh n-drahy-uh-kuh l, ˌhaɪ poʊ kənˈdraɪ ə kəl. Psychiatry. pertaining to or suffering from hypochondria, an excessive preoccupation with and worry about one's health: The comedy is aimed at the hypochondriac demographic. produced by hypochondria: Hypochondriac feelings overwhelmed her.
  • hypochondrium — either of two regions of the abdomen, situated on each side of the epigastrium and above the lumbar regions.
  • hypohydration — Dehydration.
  • ideal crystal — a crystal in which there are no defects or impurities
  • identity card — a card for identifying the bearer, giving name, address, and other personal data.
  • idiorrhythmic — self-regulating; allowing each member to regulate his or her own life
  • idiosyncratic — pertaining to the nature of idiosyncrasy, or something peculiar to an individual: The best minds are idiosyncratic and unpredictable as they follow the course of scientific discovery.
  • improvidently — In an improvident manner.
  • inadvertently — unintentional: an inadvertent insult.
  • incredibility — so extraordinary as to seem impossible: incredible speed.
  • incredulously — not credulous; disinclined or indisposed to believe; skeptical.
  • indescribably — not describable; too extraordinary for description: a scene of indescribable confusion; indescribable euphoria.
  • indeterminacy — the condition or quality of being indeterminate; indetermination.
  • indifferently — without interest or concern; not caring; apathetic: his indifferent attitude toward the suffering of others.
  • indiscernibly — In a way that cannot be discerned.
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