| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| the offspring of a zebra and a donkey. |
chiral chi·ral (kī'rəl)
adj.
Of or relating to the structural characteristic of a molecule that makes it impossible to superimpose it on its mirror image.
| chirality (kī-rāl'ĭ-tē) Pronunciation Key
The characteristic of a structure (usually a molecule) that makes it impossible to superimpose it on its mirror image. Also called handedness. See also helicity, invariance, optical isomer. |