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English Words Starting With S

15,552 entries — pick a word to see its definition, pronunciation, and usage.

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

stereoscopy
nounLow
/ˌstɛr.iˈɒs.kə.pi/The technique and phenomenon of perceiving or creating a three-dimensional effect from two-dimensional images, typically by presenting a slightly different image to each eye.
stereospecific catalyst
nounC2
/ˌstɛrɪəʊspəˈsɪfɪk ˈkætəlɪst/A catalyst that selectively produces one stereoisomer of a product from a reaction that could yield multiple stereoisomers.
stereospecific polymer
nounVery Low
/ˌstɛrɪəʊspəˈsɪfɪk ˈpɒlɪmə/A polymer synthesized with control over the stereochemical configuration of its monomer units.
stereotape
nounVery Low (Obsolete/Historical)
/ˈstɛr.i.əʊ.teɪp/A type of magnetic audio tape designed for recording or playback in stereo (two-channel) sound.
stereotaxis
nounC2
/ˌstɛrɪə(ʊ)ˈtaksɪs/A medical technique or biological response involving movement or orientation in relation to three-dimensional space or a precise set of coordinates.
stereotomy
nounRare
/ˌstɛrɪˈɒtəmi/The art or science of cutting solids, especially stone, into specific shapes for construction or design purposes.
stereotropism
nounC2
/ˌstɛrɪˈɒtrəpɪz(ə)m/The growth or movement of an organism in response to contact with a solid object.
stereotype
nounverbverb-transitiveC1
/ˈsteriətaɪp/A widely held but fixed and oversimplified image or idea of a particular type of person or thing.
stereotypy
nounC2 / Low-frequency technical/academic
/ˈstɛrɪə(ʊ)ˌtaɪpi/A persistent, repetitive, and fixed pattern of behavior, thought, or movement that lacks flexibility and purpose.
stereovision
nounLow (primarily technical/academic)
/ˈster.i.əˌvɪʒ.ən/The ability to perceive depth and three-dimensional structure, typically by using binocular vision.
steric hindrance
nounLow (C2/Professional)
/ˌstɛrɪk ˈhɪndrəns/The interference between atoms or groups in a molecule due to their size and spatial arrangement, preventing certain chemical reactions or conformations.
sterigma
nounRare / Very Low
/stɛˈrɪɡmə/A small stalk or projection that bears a spore in fungi.
sterilant
nounC2
/ˈster.ɪ.lənt/A substance or agent used to destroy all living microorganisms, including bacterial spores.
sterility
nounC1
/stəˈrɪləti/The complete inability to produce offspring or to produce living, viable, or fertile organisms (biological); the state of being free from living microorganisms (asepsis).
sterilization
nounC1
/ˌster.ɪ.laɪˈzeɪ.ʃən/The process of making something completely free from living microorganisms, such as bacteria or viruses; or the process of making an organism incapable of reproduction.
sterilize
verbverb-transitiveC1
/ˈster.ə.laɪz/To make something completely free from bacteria or other living microorganisms.
sterilizer
nounMedium Frequency
/ˈstɛr.ɪ.laɪ.zə/A device or machine that uses heat, chemicals, or radiation to destroy all microorganisms, making objects sterile and safe from biological contamination.
sterlet
nounLow
/ˈstɜː.lɪt/A small species of sturgeon, Acipenser ruthenus, native to the Caspian and Black Sea basins, valued for its caviar.
sterling
adjectivenounB2
/ˈstɜː.lɪŋ/British money, especially the system of currency based on the pound sterling.
sterling area
nounC1-C2 / Very Low Frequency
/ˈstɜː.lɪŋ ˌeə.ri.ə/A group of countries whose currencies were pegged to the British pound sterling and which held their reserves in sterling.

Showing 11981–12000 of 15552 words.