holoplastocyaninThe form of a plastocyanin containing a bound copper atom
holoploidRelating to the entire DNA complement of the chromosome of an organism or population
holopneusticin tracheal systems, properly: having all ten pairs of spiracles functional, as occurs in the caterpillar larvae of some Hymenoptera. Loosely applied also to insects (properly termed hemipneustic) in which most, but not all, spiracles are functional.
holoprosencephalyA congenital disorder involving insufficient division of the lobes of the brain during fetal development, resulting in skull and facial deformities ranging from minor cleft lip problems to cyclopia, in which a single eye develops where the nose would normally be.
holoproteinA conjugated protein; an apoprotein combined with its prosthetic group.
holopticOccupying most of the surface of the head, and sometimes meeting in the middle
holoptychiidAny extinct fish in the family Holoptychiidae.
holorA mathematical entity made up of one or more independent quantities, or merates, as distinguished from a tensor.
holoreceptorA complete receptor whose subunits are capable of transducing intracellular signals
holospondylyThe condition of having the centra of the vertebra fused together.
holostaneAny of a group of toxic triterpene glycosides present in the sea cucumber
holosteanAny fish of the class or infraclass Holostei.
holostericWholly solid; said of a barometer, such as the aneroid barometer, constructed of solid materials to show the variations of atmospheric pressure without the use of liquids.
holostomatousHaving an entire aperture not interrupted by the siphonal canal, notch, or by any other extension
holostomeAn adult digenetic trematode with a portion of its ventral surface modified to be a complex adhesive organ.
holotabulateOf of dinoflagellate cyst (specifically calcareous resting cysts) displaying their plate pattern through clear ridges or edges matching the original theca's boundaries.
holotapeA tape used as a storage medium for holographic material.
holotechnologyThe science and technology of holographic displays.
holotypeThe single physical example (or illustration) of an organism used to formally describe the species (or lower-order taxon), subsequently to be kept as a reference.
HolyfieldA hamlet in Waltham Abbey parish, Epping Forest district, Essex, England (OS grid ref TL3803).
HolyheadA town and community with a town council on Holy Island, in the county of Anglesey, Wales (OS grid ref SH2482).
holyhedronA polyhedron with a finite number of faces and with a polygonal hole in every face, the holes' boundaries sharing no point with each other or the face's boundary.