horsehair
The hair of a horse, especially from the mane and tail, used for upholstery.
A fabric made from this.

horsehairs
plural of horsehair

horseskin
The skin of a horse, or leather made therefrom.

horseskins
plural of horseskin

horsetooth
A type of maize with kernels shaped like a horse's tooth, especially dent maize or a subtype.

hospicell
An ascitic stromal cell

hospicells
plural of hospicell

houseboat
A vessel, such as a barge, used as a dwelling.

hulch
A hunch, hump (on the back).
A thick slice, hunk.

humeri
plural of humerus

humerotriceps
A triceps muscle associated with the humerus of birds

humerus
The bone of the upper arm.

humeruses
plural of humerus

huxen
The hough; the back of the hip.

hyalinocyte
An agranular haemocyte containing a central nucleus and little cytoplasm.

hyaloidotomies
plural of hyaloidotomy

hyaloidotomy
incision into the hyaloid membrane

hyalomere
The clear part of a blood platelet.

hyalomeres
plural of hyalomere

hyaloplasm
A structureless fluid in cells; cytosol

hyaloplasms
plural of hyaloplasm

hyaluronanosis
A wrinkled skin condition caused by the presence of hyaluronan

hydathode
A tissue, in the leaves of many plants, that contains microscopic pores through which water is excreted.

hydathodes
plural of hydathode

hydnoid
One of a group of fungi that have basidiocarps producing spores on tooth- or spine-like projections.

hydnoids
plural of hydnoid

hydramnion
Polyhydramnios.

hydrencephalocele
A protrusion of the brain fissure enclosing part of a ventricle.

hydrencephaloceles
plural of hydrencephalocele

hydrocalycosis
A rare kidney condition in which one or more renal calyces become abnormally dilated or swollen, often due to obstruction of their narrow neck, resulting in fluid buildup.

hydrocele
An abnormal build-up of fluids at a site in the body, especially in the membranes around a testicle.

hydroceles
plural of hydrocele

hydrocephalocele
Alternative form of hydrencephalocele.

hydrocephaloceles
plural of hydrocephalocele

hydrocode
Any of several computer programs that model the behaviour of fluid flow systems by breaking down the system into a three-dimensional matrix of cells and calculating the forces etc. affecting each one

hydrocodes
plural of hydrocode

hydrocoel
Alternative form of hydrocele.

hydrocoele
Alternative spelling of hydrocele.

hydrocoeles
plural of hydrocoele

hydrocoels
plural of hydrocoel

hydroculture
A type of hydroponics in which plants are grown in a medium that allows the distribution of water and nutrients through capillary action.

hydrocution
The situation where blood vessels dilated by the heat contract suddenly, when cold water is applied to the skin, leading to cardiac arrest.

hydrodistension
Alternative form of hydrodistention.

hydrodistensions
plural of hydrodistension

hydrodistention
The distention of the bladder (with a saline solution) as part of a test for interstitial cystitis

hydrodistentions
plural of hydrodistention

hydroecium
A sac attached onto a nectocalyx or swimming bell of specific types of oceanic hydrozoa.

hydroencephalocele
Alternative form of hydrencephalocele.

hydroencephaloceles
plural of hydroencephalocele

hydrogenosome
A membrane-bound form of organelles that produce molecular hydrogen and ATP in some anerobic ciliates, trichomonads and fungi, remarkable in that most forms contain no DNA.

hydrogenosomes
plural of hydrogenosome

hydroleucite
The vacuoles associated with cell sap.

hydroleucites
plural of hydroleucite

hydrolipid
An emulsion of fat and water, a film of which normally covers the skin

hydrolysate
Any product of a hydrolysis reaction.

hydrolysates
plural of hydrolysate

hydrolyzate
Alternative form of hydrolysate.

hydrolyzates
plural of hydrolyzate; Alternative form of hydrolysates.

hydrometrocolpos
Distention of the vagina and uterus by watery fluid other than blood or pus.

hydronephroses
plural of hydronephrosis

hydronephrosis
distension of the kidneys due to obstruction in the flow of urine

hydropericardium
The accumulation of serous fluid in the pericardium

hydroperitoneum
The accumulation of fluid in the peritoneum

hydropolyp
The polyp of a hydrozoan

hydropolyps
plural of hydropolyp

hydroporation
The creation of pores in biological membranes by the pressure of water

hydropore
A pore on the outside of a starfish connecting to the hydrovascular organ.

hydropores
plural of hydropore.

hydropyrolysate
The product of hydrous pyrolysis

hydropyrolysates
plural of hydropyrolysate

hydroreceptor
An organ that detects water.

hydroreceptors
plural of hydroreceptor

hydroskeleton
A hydrostatic skeleton; a structure found in many cold-blooded organisms and soft-bodied animals, consisting of a fluid-filled cavity, the coelom, surrounded by muscles, and used in movement and changing shape.

hydroskeletons
plural of hydroskeleton

hydrostasis
hydrostatic equilibrium

hydrosurgery
A form of surgery in which small jets of water are employed to debride damaged tissue

hydrotaxis
movement (of an organism or organ) in response to water

hydroureter
distension of the ureter with urine, due to an obstruction

hydroureteronephroses
plural of hydroureteronephrosis

hydroureteronephrosis
distension of the kidneys and ureter

hydroureters
plural of hydroureter

hydroxyprostaglandin
Any of several hydroxy derivatives of prostaglandin that are smooth muscle relaxants

hydroxyprostaglandins
plural of hydroxyprostaglandin

hygroplasm
The fluid portion of the cell protoplasm, in opposition to stereoplasm, the solid or insoluble portion.

hymen
A membrane which completely or partially occludes the vaginal opening in human females.
Marriage.

hymenography
A study (or a description) of membranes

hymens
plural of hymen

hyobranchia
plural of hyobranchium

hyobranchium
A Y-shaped bone that supports the tongue of snakes

hyoglossi
plural of hyoglossus

hyoglossus
A flat muscle on either side of the tongue, connecting it with the body and the thyrohyal of the hyoid bone.

hyoidectomy
Surgical removal or excision of the hyoid bone.

hyolarynx
The larynx together with the hyoid bone

hyoperfusion
Misspelling of hypoperfusion.

hypantrum
The point on the neural arch at the anterior ends of the vertebrae of various reptiles where it articulates with the hyposphene

hypapophyses
plural of hypapophysis

hypapophysis
A process, or other element, of a vertebra developed from the ventral side of the centrum.

hyperadhesion
Greater than normal adhesion (typically between cells or their components)

hyperaesthesia
Alternative spelling of hyperesthesia.

hyperaesthesias
plural of hyperaesthesia

hyperalgesia
An increased sensitivity to pain, which in one form is caused by damage to nociceptors in the body's soft tissues.

hyperalgesias
plural of hyperalgesia

hyperalgia
Synonym of hyperalgesia.

hyperapophyses
plural of hyperapophysis

hyperapophysis
A lateral and backward-projecting process on the dorsal side of a vertebra.

hyperarterialization
An extreme level of arterialization, typically in the liver

hyperasthesia
Misspelling of hyperesthesia.

hyperbrachycephaly
Extreme brachycephaly

hypercalcification
Excessive calcification, typically, of a tooth.

hypercalcifications
plural of hypercalcification

hypercementoses
plural of hypercementosis

hypercementosis
An idiopathic, non-neoplastic condition characterised by the excessive buildup of normal cementum (calcified tissue) on the roots of one or more teeth

hyperchromia
Macular darkening of the skin.
The state of being hyperchromic, i.e. having a higher-than-normal amount of haemoglobin in the red blood cells.

hypercolumn
An array of orientation columns in the visual cortex

hypercolumns
plural of hypercolumn

hyperconnection
hyperconnectivity; excessive connections between neurons in the brain
A set of sets that contains the empty set, all one-element sets for any element that is included in any of the sets, and the union of any overlapping group of sets that are elements.