| prickle | <plant biology> A hard, pointed outgrowth from the surface of a plant, involving several layers of cells but not containing a vein. (05 Mar 1998) |
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| prickle cell | <cell biology> Large flattened polygonal cells of the stratum germinosum of the epidermis (just above the basal stem cells), that appear in the light microscope to have fine spines projecting from their surfaces, these terminate in desmosomes that link the cells together and have many tonofilaments of cytokeratin within them. (05 Mar 1998) |
| prickle cell layer | The layer of polyhedral cells in the epidermis; shrinkage artifacts and adhesion of these cells at their desmosomal junctions gives a spiny or prickly appearance. Synonym: prickle cell layer, spinous layer. (05 Mar 2000) |
| prickleback | <zoology> The stickleback. Source: Websters Dictionary (01 Mar 1998) |
| pricklefish | <zoology> The stickleback. Source: Websters Dictionary (01 Mar 1998) |