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In the lumber industry, abbr. for pattern.


As applied to a specimen of neat cement paste, a sample about 3 in. (7.6 cm) in diameter and ½ in. (1.3 cm) in thickness at the center and tapering to a thin edge; applied on a flat glass plate to determine the setting time.


(Port Address Translation) The most common way network address translation is implemented (see NAT). Also called "NAT overloading," "network address port translation" (NAPT) and "NAT/PAT."

PAT assigns a different TCP port number to each client session with a server on the Internet. When responses come back from that server, the source port number becomes the destination port number and determines which user to route the packets to. It also validates that the incoming packets were indeed requested. See NAT traversal, UDP hole punching, private IP address, RSIP and proxy server.

By using a different port number for each user, the NAT device knows which client PC to route the incoming packets to. See TCP/IP port.
References in periodicals archive ?
NAPT is participating in the event because nothing can ever be taken for granted and good safety and security record is only as good as it is today, she said.
As part of CellControl's involvement in this week's NAPT Summit and its ongoing commitment to pupil transportation safety, CellControl is hosting online web seminars to inform education and community leaders on the dangers, realities and costs of distracted driving (DWD).
Mike Martin, executive director of the National Association for Pupil Transportation (NAPT) said, "Zonar products and services are used by NAPT members across the broad spectrum of fleet size.
It uses NAPT to hide the IP addresses/ports of the service elements in the IMS network.