flatworm. see Platyhelminthes Platyhelminthes, phylum containing about 20,000 species of soft-bodied, bilaterally symmetrical, invertebrate animals, commonly called flatworms.There are four classes: the free-living, primarily aquatic class, Turbellaria, and Trematoda, Cestoda, and Monogenea, which are.....ee Platyhelminthes Platyhelminthes, phylum containing about 20,000 species of soft-bodied, bilaterally symmetrical, invertebrate animals, commonly called flatworms.
Freebase(0.00 / 0 votes)Rate this definition: Pro rata. Pro rata is an adverb or adjective, meaning in proportion. The term is used in many legal and economic contexts. It is sometimes spelled pro-rata, but this is technically a misspelling of the Latin phrase. In North American English this term has been vernacularized to prorated.
Pro-Rata Salary Calculator. Tweet. If you are changing to part-time work or are considering a job where the salary is worked out pro-rata, use the pro-rata Salary Calculator to see how your take-home pay will be affected.nter the number of hours, and the rate at which you will get paid. For example, for 5 hours a month at time and a half, enter 5 @ 1.5. There are two options in case you have two different overtime rates. To keep the calculations simple, overtime rates are based on a normal week of 37.5 hours.