1

-oid

noun suffix

Definition of -oid

  1. :  something resembling a (specified) object or having a (specified) quality globoid


2

-oid

adjective suffix

Definition of -oid

  1. :  resembling :  having the form or appearance of petaloid

Origin and Etymology of -oid

Latin -oïdes, from Greek -oeidēs, from -o- + eidos appearance, form — more at wise


Seen and Heard

What made you want to look up -oid? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

a severe test

Get Word of the Day daily email!

Test Your Vocabulary

The Emoji Quiz

  • emoji-the-quiz
  • What phase of the moon is this: 🌖 ?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!