14-letter words starting with he
- hermit kingdom — Korea during the period, c1637–c1876, when it was cut off from contact with all countries except China.
- hermit warbler — a common wood warbler (Dendroica occidentalis) of W North America, with a yellow-and-black head, a gray back, and white underparts
- herniated disk — an abnormal protrusion of a spinal disk between vertebrae, most often in the lumbar region of the spine, causing pain due to pressure on spinal nerves.
- hero's formula — the formula for the area of a triangle when the sides are given: for a triangle with sides a, b, and c, the area is equal to , where s is equal to one half the perimeter of the triangle.
- hero's welcome — a very enthusiastic reception from a group of people who show their admiration for something good that you have done
- heroic couplet — a stanza consisting of two rhyming lines in iambic pentameter, especially one forming a rhetorical unit and written in an elevated style, as, Know then thyself, presume not God to scan / The proper study of Mankind is Man.
- herpes simplex — either of two herpes diseases caused by a herpesvirus that infects humans and some other animals and produces small, transient blisters on the skin or mucous membranes, one type of virus (herpes simplex virus type 1, or HSV-1) usually associated with oral herpes but also causing genital herpes and the other (herpes simplex virus type 2, or HSV-2) usually causing genital herpes.
- herpetological — Of or relating to herpetology, the study of reptiles.
- herpetologists — Plural form of herpetologist.
- herring choker — a native or resident of any of the Maritime Provinces but especially of New Brunswick.
- hertzian waves — radio waves or other electromagnetic radiation resulting from the oscillations of electricity in a conductor
- heteroaromatic — a heterocyclic aromatic compound.
- heterochromous — of different colors.
- heterochronism — a change in the stage at which developmental processes take place relative to members of the same species
- heterochronous — a genetic shift in timing of the development of a tissue or anatomical part, or in the onset of a physiological process, relative to an ancestor.
- heteroclitical — (obsolete) Anomalous, heteroclite.
- heteroflexible — (of a person) predominantly heterosexual but not exclusively so
- heterographies — Plural form of heterography.
- heterokaryosis — condition in which a binucleate or multinucleate cell contains genetically dissimilar nuclei.
- heterokaryotic — condition in which a binucleate or multinucleate cell contains genetically dissimilar nuclei.
- heterolecithal — having an unequal distribution of yolk, as certain eggs or ova.
- heterologously — In a heterologous manner.
- heteromorphism — The quality or condition of existing in various forms.
- heterophyllous — having different kinds of leaves on the same plant.
- heteroplasties — Plural form of heteroplasty.
- heteroromantic — Romantically attracted to those of the opposite gender.
- heterosexually — In a heterosexual way.
- heterosomatous — (of fish) having an abnormal or asymmetrical body type
- heterospecific — belonging to a different species or group
- heterostrophic — (of a shell) twisting or turning in a different direction
- heterozygosity — having dissimilar pairs of genes for any hereditary characteristic.
- hexosaminidase — the enzymes that catalyse the metabolism of gangliosides