n.
a variable that is defined by Common Lisp,
by the implementation,
or by user code (see the macrodefconstant)
to always yield the same value when evaluated.
The value of a named constant may not be changed
by assignment or by binding.
n.
1. bindings whose denotations are restricted to a particular kind.
The bindings of names to tags is the tag namespace.
2. any mapping whose domain is a set of names.
A package defines a namespace.
adj., ANSI, IEEE (of a float)
conforming to the description of "normalized" as described by IEEE Standard for Binary Floating-Point Arithmetic.
See denormalized.
adj., n.
1. adj.
a. (of a list) having no elements: empty. See empty list.
b. (of a string) having a length of zero.
(It is common, both within this document and in observed spoken behavior,
to refer to an empty string by an apparent definite reference,
as in "the nullstring" even though no attempt is made to
intern2 null strings. The phrase
"a nullstring" is technically more correct,
but is generally considered awkward by most Lisp programmers.
As such, the phrase "the nullstring"
should be treated as an indefinite reference in all cases
except for anaphoric references.)
c. (of an implementation-definedattribute of a character)
An object to which the value of that attribute defaults
if no specific value was requested.
2. n. an object of typenull (the only such object being nil).