13-letter words starting with h
- heterogeneity — the quality or state of being heterogeneous; composition from dissimilar parts; disparateness.
- heterogeneous — different in kind; unlike; incongruous.
- heterogenesis — Also, heterogeny [het-uh-roj-uh-nee] /ˌhɛt əˈrɒdʒ ə ni/ (Show IPA). alternation of generations, especially the alternation of parthenogenetic and sexual generations.
- heterogenetic — of, relating to, or characterized by heterogenesis.
- heteroglossia — (linguistics) the coexistence of distinct varieties within a single linguistic code.
- heterographic — Misspelled; of or pertaining to an incorrect spelling or a spelling that differs from accepted standards.
- heterological — (grammar) Of an adjective, not describing itself.
- heteromorphic — Biology. dissimilar in shape, structure, or magnitude.
- heteroplastic — the repair of lesions with tissue from another individual or species.
- heteropolitan — a heterosexual man, typically living in a city, whose attitudes and interests are regarded as masculine but not excessively so
- heteropterous — belonging or pertaining to the Heteroptera, in some classifications a suborder of hemipterous insects comprising the true bugs.
- heterosexuals — Plural form of heterosexual.
- heterosporous — having more than one kind of spore.
- heterostracan — any of several ostracoderms of the order Heterostraci, from the Silurian and Devonian Periods, having the anterior part of the body enclosed in bony plates.
- heterostrophy — the condition of being heterostrophic
- heterostylism — the condition of being heterostyled
- heterothallic — having mycelia of two unlike types, both of which must participate in the sexual process. Compare homothallic (def 1).
- heterothermal — having a different or varying temperature
- heterothermic — Relating to, or exhibiting, heterothermy.
- heterotrophic — capable of utilizing only organic materials as a source of food.
- heterozygosis — the state of being a heterozygote.
- heterozygotes — a hybrid containing genes for two unlike forms of a characteristic, and therefore not breeding true to type.
- heterozygotic — having dissimilar pairs of genes for any hereditary characteristic.
- heuristically — serving to indicate or point out; stimulating interest as a means of furthering investigation.
- heusler alloy — any of various alloys of manganese and other nonferromagnetic metals that exhibit ferromagnetism.
- hevelian halo — a faint white halo with an angular radius of 90° that is occasionally seen around the sun or the moon, thought to be caused by the reflection and refraction of sunlight by ice crystals.
- hexactinellid — a type of sponge characterized by their (usually) six siliceous spicules or rays
- hexadactylism — Sexdactyly.
- hexadactylous — hexadactylic
- hexamethonium — a compound, C 10 H 24 N 2 , used in the treatment of severe hypertension to lower blood pressure and increase blood flow by blocking transmission of nerve impulses that constrict blood vessels.
- hexamethylene — cyclohexane.
- hexanaphthene — cyclohexane.
- hexanoic acid — caproic acid.
- hiatal hernia — an abnormal condition in which part of the stomach protrudes upward through the esophageal cleft in the diaphragm, sometimes causing a backflow of acid stomach contents into the esophagus.
- hiatus hernia — an abnormal condition in which part of the stomach protrudes upward through the esophageal cleft in the diaphragm, sometimes causing a backflow of acid stomach contents into the esophagus.
- hiberno-saxon — having the characteristics of both the Irish and English; Anglo-Irish.
- hickory hills — a town in NE Illinois.
- hidden agenda — an often duplicitously undisclosed plan or motive.
- hide and seek — one of a variety of children's games in which, according to specified rules, one player gives the others a chance to hide and then attempts to find them.
- hide-and-seek — one of a variety of children's games in which, according to specified rules, one player gives the others a chance to hide and then attempts to find them.
- hieracosphinx — (in ancient Egyptian art) a hawk-headed sphinx
- hieroglyphics — Also, hieroglyphical. designating or pertaining to a pictographic script, particularly that of the ancient Egyptians, in which many of the symbols are conventionalized, recognizable pictures of the things represented.
- hieroglyphist — a person who studies hieroglyphics; hieroglyphologist.
- hierogrammate — a writer of hierograms
- high fidelity — sound reproduction over the full range of audible frequencies with very little distortion of the original signal.
- high holidays — either of two holy days of special significance, Rosh Hashanah or Yom Kippur.
- high holy day — either of two holy days of special significance, Rosh Hashanah or Yom Kippur.
- high old time — an enjoyable and exciting time
- high pressure — intense or stressful situation
- high-coloured — (of the complexion) deep red or purplish; florid