-oid

American  

1. a suffix meaning “resembling,” “like,” used in the formation of adjectives and nouns (and often implying an incomplete or imperfect resemblance to what is indicated by the preceding element).

   alkaloid; anthropoid; cardioid; cuboid; lithoid; ovoid; planetoid.

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-oid British  

suffix

1. indicating likeness, resemblance, or similarity

   anthropoid

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–oid Scientific  

1. A suffix meaning “like” or “resembling,” as in ellipsoid, a geometric solid that resembles an ellipse.

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Usage

What does -oid mean? The suffix -oid means “resembling” or "like." It is often used in scientific terms, especially in biology.The suffix -oid comes from Greek -oeidēs, from eîdos meaning “form.”What are variants of -oid?The plural form of -oid used in the names of zoological classes is -oidea, as in cynoidea. Want to know more? Read our Words That Use article on -oidea.

Etymology

Origin of -oid

< Greek -oeidēs, equivalent to -o- -o- + -eidēs having the form of, derivative of eîdos form

Example Sentences

A Russian spy at the British embassy in Berlin was caught by a sting operation, the OId Bailey has heard.

From BBC

Simeone was pelted with missiles as he walked to the tunnel after United's 1-0 loss at OId Trafford.

From BBC

It raised US$4bn from the sale of three-year debt, paying an 11.5% coupon at 99 OID and another US$2.25bn from equity-linked securities.

From Reuters

The five-year term loan B includes a minimum €500m tranche and is guided to pay 675bp-700bp, at 96 OID.

From Reuters

Ciarrocca replaces Ricky Rahne, who was named the head coach at OId Dominion earlier this month.

From Seattle Times