Meanings

fixed head

constant spacing

fixed-point representation system

fixed length packet

eigenfunction

fixed-point arithmetic

fixed attribute

fixed-width font

inherently optional token

fixed-point data

fixed length cell

native collating sequence

native character set

intrinsic colour data

Permanent Virtual Circuit

permanent virtual connection

locale-specific behavior

solid-fuel rocket

yoko-shiho-gatame (judo hold in which the opponent's shoulders and hips are pinned)

solid-state laser