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.
Submit. Â· just now. Report Abuse. Pro Rata means how much you get paid for part time in proportion to the full time wage. how i usually work this out-- take the full time wage divide it by 52 (weeks in year) = take that total and divide it by 40 (average full time hours) = this gives you a hourly rate.eport Abuse. Pro rata basically means wages are in proportion to hours worked. So a wage of Â£12,000 FULL TIME, (full time is classed as 39 hours) so for 20 hours, pro rata of Â£12,000 would be approximately half-so 20 hours a week would give yearly wage of Â£6,000. â¥ Bekka â¥ Â· 9 years ago.