barrierless en · ADJ
Etymology
Etymology tree English barrier Proto-Indo-European *lewh₁- Proto-Indo-European *lewHs-der. Proto-Germanic *leusaną Proto-Germanic *lausaz Proto-Germanic *-lausaz Proto-West Germanic *-laus Old English -lēas Middle English -les English -less English barrierless From barrier + -less.
Meanings
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(not-comparable) Lacking barriers
The world is increasingly barrierless.
High Mill crossing, at present gated and manually-operated, will become a barrierless rural-type crossing.
1979 August, Michael Harris, “A line for all reasons: the North Yorkshire Moors Railway”, in Railway World, page 412:In Burneside in the Lake District on July 29, an incident took place at a barrierless level crossing on the Windermere branch that has been described by senior railway staff as one of the closest near misses they've ever seen.
2021 August 25, “Network News: New warnings to the public after trespass and near-miss incidents”, in RAIL, number 938, page 13:
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(not-comparable, physical) Not requiring activation energy.
The reaction is then barrierless, ie, ΔG* = 0, and the rate constant is a maximum for the given λ (Figure 6).
1992, R.A. Marcus, Prabha Siddarth, “Theory of Electron Transfer Reactions and Comparison with Experiments”, in Elise Kochanski, editor, Photoprocesses in Transition Metal Complexes, Biosystems, and Other Molecules, page 63:
Deriveds
barrierlessness · barrierlessly
Translations (3)
fi esteetön (Translations) · de barrierefrei (Translations) · pl bezbarierowy (Translations)