|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
tetraploid tet·ra·ploid (tět'rə-ploid')
Having four times the haploid number of chromosomes in the cell nucleus. n.
A tetraploid individual.