microatoll
noun
A circular growth of coral a few metres in diameter and with a central depression, such as is found in intertidal areas in warm seas and on the flats inside a coral reef.
Origin
1930s.
- circular firing squad
- circularise
- circularity
- circularization
- circularize
- circularly
- circular polarization
- circular saw
- circulate
- circulating library
- circulating medium
- circulation
- circulative
- circulator
- circulatory
- circulatory system
- circum-
- circumambience
- circumambient
- circumambulate
- circumambulation
- circumambulatory
- circumcircle
- circumcise
- circumciser