English

Noun

expando ‎(plural expandos)

1. (computing, programming) A property added to an object at run-time.
   • 2009, Ted Pattison, Daniel Larson, Inside Microsoft Windows Sharepoint Services 3.0

     Because JavaScript objects are not constrained to predefined interfaces as they are with .NET objects, you can set expando properties on any object.

   • 2010, Alexei White, JavaScript Programmer's Reference

     I talk more about expandos in Chapter 10. This means that you can arbitrarily add new properties to an object whenever you want.

See also

• duck typing

Latin

Etymology

From ex- ‎(“out”) +‎ pandō ‎(“spread”).

Pronunciation

• (Classical) IPA^(key): /ekˈspan.doː/, [ɛkˈspan.doː]

Verb

expandō ‎(present infinitive expandere, perfect active expandī, supine expansum); third conjugation

1. I spread out
2. I expand
3. I explain

Inflection

• expans- is sometimes expass-

Descendants

• English: expand, spawn
• French: épandre
• Italian: spandere
• Portuguese: expandir
• Spanish: expandir

References

• expando in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• Félix Gaffiot (1934), “expando”, in Dictionnaire Illustré Latin-Français, Paris: Hachette.

Portuguese

Verb

expando

1. first-person singular present indicative of expandir

Spanish

Verb

expando

1. First-person singular (yo) present indicative form of expandir.