| yellow | (chibi term ansi) R7 | (chibi term ansi) |
| yellow-background | (chibi term ansi) R7 | (chibi term ansi) |
| yellow-background-escape | (chibi term ansi) R7 | (chibi term ansi) |
| yellow-escape | (chibi term ansi) R7 | (chibi term ansi) |
| yes-or-no? | (chibi snow interface) R7 | (chibi snow commands) |
| (chibi snow interface) R7 | (chibi snow commands) |
| (chibi snow interface) R7 | (chibi snow commands) |
| yield | (nondeterministic-recognizer) R6 | r6rs-ad |
| (stochastic-recognizer) R6 | r6rs-ad |
| yield-equal? | (nondeterministic-recognizer) R6 | r6rs-ad |
| (stochastic-recognizer) R6 | r6rs-ad |
| z-statistic | (chibi math stats) R7 | (chibi math stats) |
| z-test | (chibi math stats) R7 | (chibi math stats) |
| z-test? | (chibi math stats) R7 | (chibi math stats) |
| zbrent | (scmutils base) R6 | chez-scmutils |
| zd-wallp? | (scmutils base) R6 | chez-scmutils |
| zenith-xyY | (slib daylight) R7 | (slib daylight) |
| zero | (scmutils base) R6 | chez-scmutils |
| zero-coordinate-function | (scmutils calculus) R6 | chez-scmutils |
| zero-like | (scmutils generic) R6 | chez-scmutils |
| zero-manifold-function | (scmutils calculus) R6 | chez-scmutils |
| zero-manifold-function? | (scmutils calculus) R6 | chez-scmutils |
| zero-mod-2pi? | (scmutils base) R6 | chez-scmutils |
| zero-mod-pi? | (scmutils base) R6 | chez-scmutils |
| zero-stream | (scmutils base) R6 | chez-scmutils |
| zero? | (AD) R6 | r6rs-ad |
| (akku-r7rs base) R6 | akku-r7rs |
| (mpl rnrs) R6 | mpl |
| (mpl rnrs-base) R6 | mpl |
| (mpl rnrs-sans) R6 | mpl |
| (r6rs base) R7 | (r6rs base) |
| (r6rs base) R7 | (r6rs base) |
| (scheme base) R6 | akku-r7rs |
| (scheme base) R6 | akku-r7rs |
| (scheme r5rs) R6 | akku-r7rs |
| (scheme r5rs) R6 | akku-r7rs |
| (scmutils generic) R6 | chez-scmutils |
| (xitomatl lang) R6 | xitomatl |
| (xitomatl rnrs-profiled) R6 | xitomatl |
| (xitomatl rnrs-restricted) R6 | xitomatl |
| zero_motion | (text-mode terminfo constants) R6 | text-mode |
| zip | (dharmalab misc srfi-1-lists-r6) R6 | dharmalab |
| (rapid list) R7 | (rapid list) |
| (srfi :1) R6 | chez-srfi |
| (srfi :1 lists) R6 | chez-srfi |
| (srfi s1 lists) R6 | thunderchez |
| (surfage s1 lists) R6 | surfage |
| zip-change | (spells zipper-tree) R6 | spells |
| zip-delete | (spells zipper-tree) R6 | spells |
| zip-down | (spells zipper-tree) R6 | spells |
| zip-files | (dorodango actions) R6 | dorodango |
| zip-finish | (spells zipper-tree) R6 | spells |
| (xitomatl zipper base) R6 | xitomatl |
| (xitomatl zipper trees) R6 | xitomatl |
| zip-insert-down | (spells zipper-tree) R6 | spells |
| zip-insert-left | (spells zipper-tree) R6 | spells |
| zip-insert-right | (spells zipper-tree) R6 | spells |
| zip-iterate/df | (xitomatl zipper trees) R6 | xitomatl |
| zip-left | (spells zipper-tree) R6 | spells |
| zip-leftmost? | (spells zipper-tree) R6 | spells |
| zip-n | (xitomatl zipper base) R6 | xitomatl |
| (xitomatl zipper trees) R6 | xitomatl |
| zip-right | (spells zipper-tree) R6 | spells |
| zip-rightmost? | (spells zipper-tree) R6 | spells |
| zip-to-nth/df | (xitomatl zipper trees) R6 | xitomatl |
| zip-top | (spells zipper-tree) R6 | spells |
| zip-top? | (spells zipper-tree) R6 | spells |
| zip-up | (spells zipper-tree) R6 | spells |
| zipper-cont | (xitomatl zipper base) R6 | xitomatl |
| (xitomatl zipper trees) R6 | xitomatl |
| zipper-node | (spells zipper-tree) R6 | spells |
| zipper-thing | (xitomatl zipper base) R6 | xitomatl |
| (xitomatl zipper trees) R6 | xitomatl |
| zipper? | (spells zipper-tree) R6 | spells |
| (xitomatl zipper base) R6 | xitomatl |
| (xitomatl zipper trees) R6 | xitomatl |
| zlib-error? | (spells gzip) R6 | spells |
| ~! | (questionnaires language) R6 | racr |
| ~> | (questionnaires language) R6 | racr |
| ~? | (questionnaires language) R6 | racr |
| ~~ | (questionnaires language) R6 | racr |
| λ | (xitomatl lang) R6 | xitomatl |
| λS | (xitomatl stack-lang) R6 | xitomatl |
| (xitomatl stack-lang core) R6 | xitomatl |
| λS/who | (xitomatl stack-lang core) R6 | xitomatl |