different between tacticity vs tactility

English

Etymology

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Noun

tacticity (countable and uncountable, plural tacticities)

1. (chemistry) The relative stereochemistry of adjacent chiral centers within a macromolecule.

English

Etymology

tactile +? -ity

Noun

tactility (countable and uncountable, plural tactilities)

1. The condition of being tactile (relating to or able to be perceived by the sense of touch).

   Synonym: tactuality

   • 1988, Angela Carter, “John Ford’s ’Tis Pity She’s a Whore” in Burning Your Boats: The Collected Short Stories, New York: H. Holt, p. 337,^[1]

     Each time they lay down there together, as if she obeyed a voice that came out of the quilt telling her to put the light out, she would extinguish the candle flame between her finger-tips. All around them, the tactility of the dark.

   • 1993, Vikram Seth, A Suitable Boy, London: Phoenix, 1994, Part 8, p. 554,^[2]

     Maan loved swimming, not for the exercise but for the luxury, the tactility of it.

2. The ability to feel pressure or pain through touch.

Translations