14-Letter Words Containing: I,I,O,S,T

• To practice ventriloquism.

• To speak the words of (another person), as though by ventriloquism.

• (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids

• the state of being homozygous; having two identical alleles of the same gene

• an underactive thyroid gland; a glandular disorder resulting from insufficient production of thyroid hormones

• a compound used primarily in veterinary medicine to rid farm animals of internal parasites