Dictionary

Word parts

Prefixes, suffixes and roots: learn one and every word built from it becomes readable.

-oidA word ending that means like or resembling.

-omaA word ending that means tumor or mass.

-opiaA word ending that means vision or a condition of the eye.

-opsyA word ending that means viewing or looking at.

-osisA word ending that means an abnormal condition or process, or an increase.

-ostomyA word ending that means a surgically made opening, usually to the outside of the body.

-otomyA word ending that means cutting into, or a surgical incision.

-ousA word ending that makes an adjective, meaning relating to, having or full of.

ocul/oA word root that means eye; ophthalm/o means eye too.

olig/oA word root that means few, little or less than normal.

onc/oA word part that means tumor or mass.

onych/oA word root that means nail (of a finger or toe).

oophor/oA word part that means ovary.

opt/oA word part that means eye or vision.

or/oA word part that means mouth.

orch/oA word root that means testis; orchi/o, orchid/o and test/o mean the same.

ortho-A word beginning that means straight, upright or correct.

oste/oA word root that means bone.

ox/oA word root that means oxygen.