Deutomerite is a rare term in geology that refers to a mineral in which an element is present in a 2:1 ratio with respect to another. The word is pronounced as /djuːˈtɒməraɪt/ according to the IPA phonetic transcription, with the stress on the second syllable. It is derived from the Greek words "deutero" meaning "second" and "meros" meaning "part". The spelling of the word includes the prefix "deutero-" which indicates the order of occurrence, followed by the root word "merite" referring to the mineralogical classification of the compound.
Deutomerite, in the context of biology and zoology, refers to a distinct stage in the development or life cycle of certain organisms, particularly parasitic flatworms known as trematodes. It is the second larval stage (preceded by the miracidium) and represents a significant transition in the development of these worms.
During this stage, the trematode larvae typically infect a specific intermediate host, which can include snails or other aquatic organisms. The deutomerite stage is characterized by the presence of a well-defined body, consisting of specialized organs and structures, designed to facilitate further progression in the life cycle and ultimately infect the definitive host (which can be a mammal, bird, or reptile).
The deutomerites often possess a well-developed oral sucker that enables them to attach to the intermediate host, aiding in their feeding and absorption of nutrients necessary for growth and maturation. Additionally, this stage may feature enlarged reproductive organs, allowing the deutomerite to produce large numbers of offspring once it reaches the definitive host.
Overall, deutomerite represents a pivotal stage in the life cycle of parasitic flatworms, marking a crucial transition from initial free-living larvae to an infective stage designed for further development and reproduction. Understanding and studying these stages is essential for comprehending the complex life cycles, transmission patterns, and overall ecology of trematode parasites.
The posterior nucleated portion of an attached cephalont, separated by an ectoplasmic septum from the anterior portion, or primite.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.