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English Words Starting With A

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

amniocentesis
nounC2/Professional
/ˌæm.ni.əʊ.senˈtiː.sɪs/A medical procedure during pregnancy in which a small amount of amniotic fluid is extracted from the uterus for testing, typically to check for genetic or developmental abnormalities in the foetus.
amniography
nounVery Low / Technical
/ˌæmniˈɒɡrəfi/A diagnostic medical imaging procedure that involves injecting a radiopaque contrast medium into the amniotic sac, followed by X-ray imaging, primarily to visualize the fetus and placenta in utero.
amnion
nounLow frequency / Very technical
/ˈæm.ni.ən/The innermost membrane that encloses the embryo of a mammal, bird, or reptile, containing the amniotic fluid.
amniote
nounRare
/ˈæmniəʊt/A vertebrate animal whose embryo develops within an amnion (a fluid-filled sac) during gestation; includes reptiles, birds, and mammals.
amniotic fluid
nounC2
/ˌæmniˌɒtɪk ˈfluːɪd/The protective liquid surrounding the developing embryo or fetus inside the amniotic sac during pregnancy.
amobarbital
nounC2 / Very Low Frequency / Technical
/ˌæməʊˈbɑːbɪt(ə)l/A barbiturate derivative used as a sedative and hypnotic drug, primarily for short-term treatment of insomnia and pre-operative sedation.
amoeba
nounC1
/əˈmiːbə/A microscopic, single-celled organism of the phylum Amoebozoa, characterized by its constantly changing shape as it moves and feeds by extending temporary projections called pseudopodia.
amoebiasis
nounC2
/ˌamɪˈbʌɪəsɪs/An infection of the intestines caused by the parasite Entamoeba histolytica, typically resulting in dysentery.
amoebic dysentery
nounLow
/əˌmiːbɪk ˈdɪsəntri/A severe intestinal infection caused by the parasite Entamoeba histolytica, characterized by bloody diarrhea, abdominal pain, and fever.
amoebocyte
nounLow
/əˈmiːbə(ʊ)saɪt/A mobile cell (like an amoeba) found in the bodily fluids of invertebrates, functioning in digestion, excretion, or immunity.
amok
adjectiveadverbnounC1
/əˈmɒk/A state of frenzied, uncontrolled, and violent behaviour, often involving indiscriminate killing.
amokura
nounVery Low
/ˈɑː.məʊˌkʊə.rə/A rare seabird species, the red-tailed tropicbird.
amole
nounVery Low
/əˈməʊli/A plant, chiefly of the American Southwest and Mexico, whose roots, bulbs, or stems can be used as soap.
amon
nounVery Low
/ˈɑːmɒn/(noun, proper) A historical figure, the successor of Tutankhamun in ancient Egyptian mythology and legend.
amontillado
nounC2
/əˌmɒn.tɪˈlɑː.dəʊ/A specific type of pale, medium-dry fortified wine from the sherry region of Spain.
amor
nounLow (archaic/poetic)
/ˈæmɔː/Deep affection, romantic love, or strong emotional attachment.
amor asteroid
nounRare / Technical
/ˌeɪ.mɔː ˈæs.tər.ɔɪd/A member of a group of near-Earth asteroids whose orbits lie primarily between Earth and Mars, but cross Mars's orbit.
amor fati
nounLow
/ˌæm.ɔː ˈfɑː.tiː/A Latin phrase meaning 'love of fate' or 'love of one's fate'.
amor patriae
nounLow
/ˌæmɔː ˈpætrɪaɪ/Love for one's country; patriotism.
amora
nounRare / Technical
/əˈmɔːrə/(in Judaism) a scholar of the period from about 200 to 500 CE who contributed to the Gemara.

Showing 4161–4180 of 8734 words.