Prefix word meaning and definition

[noun] an affix that added in front of the word
[verb] attach a prefix to; "prefixed words"

\Pre*fix"\, v. t. [imp. & p. p. {Prefixed}; p. pr. & vb. n. {Prefixing}.] [L. praefixus, p. p. of praefigere to fix or fasten before; prae before + figere to fix: cf. F. pr['e]fix fixed beforehand, determined, pr['e]fixer to prefix. See Fix.] 1. To put or fix before, or at the beginning of, another thing; as, to prefix a syllable to a word, or a condition to an agreement. 2. To set or appoint beforehand; to settle or establish antecedently. [Obs.] `` Prefixed bounds. '' --Locke. And now he hath to her prefixt a day. --Spenser.
\Pre"fix\, n. [Cf. F. pr['e]fixe.] That which is prefixed; esp., one or more letters or syllables combined or united with the beginning of a word to modify its signification; as, pre- in prefix, con- in conjure.
prefix abr decimal binary yocto- 1000^-8 zepto- 1000^-7 atto- 1000^-6 femto- f 1000^-5 pico- p 1000^-4 nano- n 1000^-3 micro- * 1000^-2 * Abbreviation: Greek mu milli- m 1000^-1 kilo- k 1000^1 1024^1 = 2^10 = 1,024 mega- M 1000^2 1024^2 = 2^20 = 1,048,576 giga- G 1000^3 1024^3 = 2^30 = 1,073,741,824 tera- T 1000^4 1024^4 = 2^40 = 1,099,511,627,776 peta- 1000^5 1024^5 = 2^50 = 1,125,899,906,842,624 exa- 1000^6 1024^6 = 2^60 = 1,152,921,504,606,846,976 zetta- 1000^7 1024^7 = 2^70 = 1,180,591,620,717,411,303,424 yotta- 1000^8 1024^8 = 2^80 = 1,208,925,819,614,629,174,706,176

Morse code: .--. .-. . ..-. .. -..-