A dependent or follower of someone of rank.
A fee one pays to reserve the other's time for services.
A device that holds teeth in position after orthodontic treatment.
Any thing or person that retains.
A retaining valve.
A paid servant, especially one who has been employed for many years.
A person whose abilities are less than normal.
That part of the axis of a curved line which is intercepted between the ordinate and the normal.
denormal
Less than normal.