释义 |
Definition of helicity in English: helicitynoun hiːˈlɪsɪtihəˈlisədē mass noun1Biochemistry Helical character, especially of DNA. Example sentencesExamples - In addition, its helicity could be further increased.
- Mechanistically, the expansion event begins with a slight loss of helicity in the stem region.
- The reason for the relatively low helicity of long peptides is unclear to us.
- One peptide was designed to maximize helicity and the other, having the same composition but a different sequence, was designed to minimize helical formation.
- This reduced its helicity and increased its average tilt, thereby presumably reducing fusion efficiency.
2Physics A combination of the spin and the linear motion of a subatomic particle. Example sentencesExamples - One physicist later wrote that, had Maurice Goldhaber not existed, ‘I am not sure that the helicity of the neutrino would ever have been measured‘.
- Linear equations can't easily capture magnetic field helicity, a property that prevents much of the field's energy from dissipating as heat.
Origin 1950s (in sense 2): from Latin helix, helic- 'spiral' + -ity. Definition of helicity in US English: helicitynounhəˈlisədē 1Biochemistry Helical character, especially of DNA. Example sentencesExamples - The reason for the relatively low helicity of long peptides is unclear to us.
- In addition, its helicity could be further increased.
- This reduced its helicity and increased its average tilt, thereby presumably reducing fusion efficiency.
- Mechanistically, the expansion event begins with a slight loss of helicity in the stem region.
- One peptide was designed to maximize helicity and the other, having the same composition but a different sequence, was designed to minimize helical formation.
2Physics A combination of the spin and the linear motion of a subatomic particle. Example sentencesExamples - One physicist later wrote that, had Maurice Goldhaber not existed, ‘I am not sure that the helicity of the neutrino would ever have been measured‘.
- Linear equations can't easily capture magnetic field helicity, a property that prevents much of the field's energy from dissipating as heat.
Origin 1950s (in helicity (sense 2)): from Latin helix, helic- ‘spiral’ + -ity. |