frameshift mutation
biol. A mutation in a DNA chain that occurs when the number of nucleotides inserted or deleted is not a multiple of three, so that every codon beyond the point […]
Fraunhofer lines
phys. Dark lines visible in the spectrum of the Sun or a star. ཉི་མའམ་སྐར་མའི་འོད་ཤལ་གྱི་ནང་དུ་ཡོད་པའི་ཐིག་ནག