Alpha numerical
(of a set of characters) including letters, numbers, and, often, special characters, as punctuation marks:
alphanumeric code.
adjective
(of a character set, code, or file of data) consisting of alphabetical and numerical symbols
adj.
1912, contracted from alphabet + numeric (see numerical).
alphabetical and numerical
Read Also:
- Alpha particle
a positively charged particle consisting of two protons and two neutrons, emitted in radioactive decay or nuclear fission; the nucleus of a helium atom. Historical Examples An alpha particle is the nucleus of a helium atom and is made up of two protons and two neutrons; it carries two positive charges. LRL Accelerators Lawrence Radiation […]
- Alpha-particle scattering
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- Alpha privative
the prefix a- or, before a vowel, an-, used in Greek and English to express negation or absence. noun (in Greek grammar) the letter alpha (or an- before vowels) used as a negative or privative prefix. It appears in English words derived from Greek, as in atheist, anaesthetic
- Alpha radiation
a stream of alpha particles. noun alpha particles emitted from a radioactive isotope noun ionizing radiation consisting of a stream of alpha particles alpha ray n. A stream of alpha particles or a single high-speed alpha particle. alpha ray A stream of alpha particles. alpha radiation [(al-fuh)] Particles sent out by some radioactive nuclei, each […]
- Alpha ray
a stream of alpha particles. Historical Examples The alpha ray carries a positive charge of double the ionic amount. The Birth-Time of the World and Other Scientific Essays J. (John) Joly Such is a brief summary of the climax of radioactive discovery:—the birth, life and death of the alpha ray. The Birth-Time of the World […]