Browse by letter

English Words Starting With H

5,990 entries — pick a word to see its definition, pronunciation, and usage.

Filter

Parts of speech

Noun Verb Adjective Adverb Plural noun Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

hemodilution
nounC2
/ˌhiːmə(ʊ)daɪˈluːʃ(ə)n/The process of decreasing the concentration of red blood cells and other blood components in the bloodstream by adding fluid.
hemodynamics
nounC2
/ˌhiː.məʊ.daɪˈnæm.ɪks/The study of the forces involved in the movement of blood through the circulatory system.
hemoflagellate
nounRare/Very Low
/ˌhiːmə(ʊ)ˈflædʒəleɪt/A parasitic protozoan with a flagellum that lives in the blood.
hemogenia
nounExtremely rare / Not in common use
A rare or non-standard term; not found in standard English dictionaries.
hemoglobin
nounMedium
/ˌhiː.məˈɡləʊ.bɪn/The iron-containing protein in red blood cells that transports oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.
hemoglobinuria
nounRare
/ˌhiːmə(ʊ)ˌɡləʊbɪˈnjʊərɪə/The presence of free haemoglobin in the urine, typically indicating medical conditions causing the breakdown of red blood cells.
hemogram
nounRare / Technical
/ˈhiː.mə.ɡræm/A visual or quantitative report showing the number, types, and characteristics of blood cells, typically from a complete blood count (CBC) test.
hemolymph
nounC2
/ˈhiːmə(ʊ)lɪmf/The circulatory fluid found in invertebrates, such as insects and crustaceans, that fulfills functions analogous to blood and lymph in vertebrates.
hemolysin
nounC2
/ˌhiːmə(ʊ)ˈlaɪsɪn/A substance, especially a toxin or antibody, that destroys red blood cells.
hemolysis
nountechnical
/hiːˈmɒlɪsɪs/The destruction or breakdown of red blood cells.
hemolytic anemia
nounLow
/ˌhiːməˌlɪtɪk əˈniːmiə/A blood disorder where red blood cells are destroyed faster than they can be made.
hemolyze
verb-intransitiveverb-transitiveRare
/ˈhiːmə(ʊ)lʌɪz/To cause the destruction of red blood cells, resulting in the release of hemoglobin.
hemon
nounVery Low / Obscure
/ˈhiːmən/Not a standard English word; appears as a proper noun (surname).
hemophile
adjectivenounVery Low
/ˈhiː.məʊ.faɪl/A person with hemophilia; a bleeder.
hemophilia
nounC1
/ˌhiː.məˈfɪl.i.ə/A hereditary medical condition, predominantly affecting males, characterized by a severe impairment of the blood's ability to clot, leading to excessive and prolonged bleeding from even minor injuries.
hemophiliac
adjectivenounC1
/ˌhiː.məˈfɪl.i.æk/A person who suffers from hemophilia, a hereditary condition where the blood does not clot normally, leading to prolonged bleeding from minor injuries.
hemophilus
nounLow
/hiːˈmɒfɪləs/A genus of bacteria that require specific growth factors present in blood for their culture, primarily causing respiratory and other infections in humans.
hemophobia
nounlow
/ˌhiːməˈfəʊbiə/An irrational or pathological fear of blood.
hemopoiesis
nounC2
/ˌhiː.məʊ.pɔɪˈiː.sɪs/The formation and development of blood cells and other blood components in the bone marrow.
hemoptysis
nounC2 (very low frequency, highly specialized term)
/hɪˈmɒp.tɪ.sɪs/The medical condition of coughing up blood or blood-stained sputum from the bronchi, larynx, trachea, or lungs.

Showing 2361–2380 of 5990 words.