superlative form of genteel: most genteel

An anatomical structure in the shells of some families of sea snails, consisting of a spiral band of growth lines on the shell surface.

(dated, biochemistry) the tangled mass of strands of chromatin seen in the early stages of mitosis, originally believed to be a single continuous strand (or two in a diploid cell, etc.)

(transitive, archaic) To jeopardize; to endanger.