Definition of "close-set"

Fore half of the mandible armed by two rows of teeth ; the outer row consisting of 10 or 11 close-set low teeth, having compressed but not pointed tips

1856 Catalogue of apodal fish: in the collection of the British Museum

Admittedly it consisted of only two pages of foolscap; but the lines, to my favor, were executed with a fine hand, resulting in close-set characters . .

2005 Marc Ponomareff - the House of the Dead