rho, epsilon, vega, depolarization, phi, cosine, meson, convexity, gamma, reactance, orbitals, quantization, oxyhemoglobin, sine wave, zeta, plasmon, magnetization, oscillator, cytidine, stochastic, excitation, amplitudes, covariance, gaussian distribution, transduction, serine, phoneme, rhythmicity, dephasing, catecholamine, amide, gamma aminobutyric acid, phagocytosis, nadph, autocorrelation, anion, phonon, hysteresis, exonuclease, anisotropy, vibrational, porphyrin, secretase, esterase, uracil, trypsin, inorganic phosphate, standard deviation, transferase, oscillations, divalent, operon, catalase, modulo, dipolar, sinusoid, atpase, ultrashort, tetramer, guanosine, trna, stoichiometry, thyroglobulin, noradrenaline, pyrimidine, cytochrome, kurtosis, lactone, tyrosine, baryon, msec, oxidase, pyruvate, moduli, nucleotide, eta, radix, biomolecule, vav, cyclization, magnus, dimer, histidine, exponential decay, conformer, nrem sleep, contractility, valsalva maneuver, oligomer, quasiparticle, phagocyte, interleaving, anabolism, forebrain, conformations, autoregulation, absorbance, scalar, ligand, sideband, phenylene, adduct, alpha, pi, beta, sigma, ap, h, ca, y, bounce, i.e., spike, t, e, ep, f, k, psi, 0, omega, optimal, equilibrium, normal, characteristic, ic, tive, \u00a9, \u00b0, ^, comparable, equipotential, ff, fl, id, midpoint, modifier, normalised, paraxial

alphabetic character, letter, letter of the alphabet