ooid

From oo- (“egg”) +‎ -id.

• (UK) IPA^(key): /ˈəʊˌɔɪd/
• (US) IPA^(key): /ˈoʊˌɔɪd/

ooid (plural ooids)

1. (geology) A small calcium carbonate or iron coated grain found on the seafloor.

• oolith

• ooidal

• oolite

ooid (comparative more ooid, superlative most ooid)

1. Shaped like an egg; ovoid; ovate.
   • 2001, George L. Hersey, The Monumental Impulse: Architecture's Biological Roots, page 152:

     One thinks of everything from amphitheaters like the Colosseum to Buckminster Fuller in his more ooid modes

• “ooid”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• James A. H. Murray et al., editors (1884–1928), “Ooid”, in A New English Dictionary on Historical Principles (Oxford English Dictionary), London: Clarendon Press, →OCLC.

• iodo-