Dictionary entry overview: What does seed plant mean? â¢ SEED PLANT (noun) The noun SEED PLANT has 1 sense: 1. plant that reproduces by means of seeds not spores Familiarity information: SEED PLANT used as a noun is very rare.
A proforma invoice is provided by a seller to a buyer for the shipped or to be shipped items or services. It describes all about the items shipped ranging from their quality, weight, value and similar important information. Sometimes deeds, wills, and samples are also imported with proforma invoices in advance.
Invoice is what one would bill for payment with. Voucher is an internal document or documents the Government uses as the evidence to pay a bill. You might try looking in your agencies finance regualtions, policies, handbooks etc. as I suspect 'voucher will be defined there somewhere.