Limited Master Credential. The Limited Master Credential is the equivalent of the OUPV Limited License, with the important distinction that the operator is licensed for boats that have passed a Coast Guard Inspection and have an inspection sticker on display. This license caps at 100 Gross Tons.
Spider. A spider is a software program that travels the Web (hence the name spider), locating and indexing websites for search engines.
Spiders, like most living creatures, are assigned to ranks in what is called a taxonomic hierarchy. Creatures with similar physical characteristics and/or genetic traits are placed alongside one another in each rank. Here is how a thin-legged wolf spider is placed, for example (and yes, spiders are animals):