(of a line or solid) limited in one direction and stretching to infinity in the other.
〔数〕（线，立方体）半无限的
Example sentencesExamples
This paper Crighton studied the sound wave associated with a turbulent fluid flow over a discontinuous surface formed by two semi-infinite flexible planes.
This is in agreement with results from an elastic model of magnetic twisting cytometry for which bead movement increased when the 5-m-high monolayer was replaced by a semi-infinite space (infinite height).
Consistent with continuum PB theory, the membrane is represented approximately as a semi-infinite planar low-dielectric slab.
A similar analysis considered that both pools experience either diffusion- or reaction-limited behavior, and the time-dependent diffusive flux to a single absorber in a semi-infinite membrane was used.