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1. Physics
a. Of or relating to quanta, quantum mechanics, or a quantized system.
b. Existing in only one of two possible states.
2. Biology Of or designating an all-or-none response or effect: a quantal reaction.

quan′tal·ly adv.


1. (Atomic Physics) of or relating to a quantum or an entity that is quantized
2. denoting something that is capable of existing in only one of two states
ˈquantally adv


(ˈkwɒn tl)

of or pertaining to quanta or to quantum mechanics.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.quantal - of or relating to a quantum or capable of existing in only one of two states
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
References in periodicals archive ?
Meyer, "A deployed quantal response-based patrol planning system for the U.
5 m above the drinking dish, producing intensive blue light, 6 X LED 450 nm + 6 X LED 470 nm, with a quantal flux of 2.
The development of resistance is usually quantal, not incremental.
Distinct functional and pharmacological properties of tonic and quantal inhibitory postsynaptic currents mediated by gamma-aminobutyric acid(A) receptors in hippocampal neurons.
To theoretically account for our conjecture, we develop a decision-error model based on the notion of quantal response equilibrium (QRE) a la McKelvey and Palfrey (1995).
Dose-response modelling of the human datasets and datasets related to quantal endpoints (i.
B-Scan (ocular ultrasonography) was done using Quantal Medical Compact-II B-Scan when fundus view was hazy.
Zweifel, "On the bias of various estimators of the logit and its variance with application of quantal bioassay," Biometrika, vol.
He covers the role of singular solutions of quantal equations in atomic physics, the classical description of crossings of energy terms and of charge exchange, classical stationary states, understanding the role of the singular spin-spin interaction in the binding energy of two-electron atoms/ions, the last observed line in the spectral series of hydrogen lines in magnetized plasma: s revision of the Inglis-Tellor concept, and extrema in transition energies resulting not in satellites but in dips within spectral lines.
The mEPSCs represent the postsynaptic responses to spontaneous release of single neurotransmitter vesicles at functional synapses and thus provide an index of synaptic efficacy and connectivity at a quantal level.