The phrase "a variability in size" is correct and usable in written English.
It can be used when discussing differences or changes in dimensions or measurements of an object or group.
Example: "The study revealed a variability in size among the different species of plants in the region."
Alternatives: "a variation in size" or "a difference in size".
Since diffusional creep viscosity depends strongly on the grain size, a variability in the grain size in a polycrystal can generate significant internal stresses.
Moreover, cardiomyocytes from postnatal Tpr-Met mice were not only characterized by an increased area, but also by a high variability in size compared to cardiomyocytes from control animals (Figure 5D,E and Figure S4), possibly due to variegated expression of Tpr-Met protein in cardiomyocytes.
Measuring the volumes of 39 chromosomes 4 hours after mitosis, a high variability in size was observed (Figure 1F).
Although no statistically significant differences in mucin expression were detected between non-infected and C. rodentium infected proximal colon, the Muc2/AB filled goblet cell thecae had a higher variability in size in the infected animals with groups of crypts being either hypertrophic and bulging, whilst other groups of crypts were partially depleted of mucin (Figure 4).
There was a large variability in size and growth.
In all exposed subjects, the BAL samples were composed predominantly of alveolar macrophages, with a significant variability in size, shape, and organization of the subcellular compartments.
Despite their universal function, centromeric DNA sequences show a high variability in size and structure among all eukaryotic taxa, ranging from short unique centromere DNA sequences in budding yeast (e.g., 125 bp in S. cerevisiae) to whole-chromosome spanning genome regions in C. elegans [ 36].
In addition, in 2, 6 and 11 months old transgenic mice, we observed structural abnormalities with an increased amount of interstitial tissue and glycogen accumulation; we also recorded a variability in muscle fiber size and an alteration of muscle structure (Figure 2A).
Patients report a slowly enlarging lump with some variability in size on a day to day basis.
The TEH region of the CRF domain is well conserved and unique, found only in the CRF domains of clade A proteins, with some variability in size and sequence.
