per·sis·tent 
(pər-sĭstənt)
(pər-sĭstənt)adj.
1. Refusing to give up or let go; persevering obstinately.
2. Insistently repetitive or continuous: a persistent honking of car horns.
3. Existing or remaining in the same state for an indefinitely long time; enduring: persistent rumors; a persistent infection.
4. Botany Lasting past maturity without falling off, as the calyx on an eggplant or the scales of a pine cone.
5. Zoology Retained permanently, rather than disappearing in an early stage of development: the persistent gills of fishes.
per·sistent·ly adv.
- cytophotometric
- cytophotometrically
- cytophotometry
- cytoplasm
- cytoplasmic
- cytoplasmically
- cytoplast
- cytoplastic
- cytosine
- cytoskeletal
- cytoskeleton
- cytosol
- cytostasis
- cytostatic
- cytostatically
- cytotaxonomic
- cytotaxonomist
- cytotaxonomy
- cytotechnologist
- cytotechnology
- cytotoxic
- cytotoxicity
- cytotoxic T lymphocyte
- cytotoxin
- CZ