cen-, ceno-, caen-, caeno-, cain-, caino-, kain-, kaino- +

1. A zoogeographical region which includes the Nearctic, Palearctic, and Oriental regions: Jenifer learned in class about the specific area of geographic distribution called Caenogaea which consisted of the Neactic, Palearctic, and the Oriental regions.
2. Etymology: Greek kainos, "recent" and gaia, "earth".

1. Embryonic development in which the appearance of new features occurs as an adaptive response to environmental conditions.
2. The development by an embryo, fetus, or larva of organs or body parts that are lost in adult life.

1. Of recent origin.
2. Characterized by recent origins or development.

The most recent division of geological time: The Caenozoic Era includes the tertiary, or "Age of Mammals", and the Quaternary, or "Age of Man".

During the Cenozoic period, which was about 63 million years ago, modern continents, glaciations, and the variety of mammals, birds, and plants were created.

An excessive fear of anything new, or a novelty of change: Mrs. Timmons loved her life with having a cup of coffee in the morning, doing gardening in the afternoon, and enjoying her favourite TV series at 5 every day, and any variation or departure from her regular life structure caused her to have kainophoiba!

Many people feel secure in their lives by doing things in the same ways and places every day, and so they have cainophobia or atychiphobia when they are required to do anything in a different way other than what is normal for them.

A reference to a new or recent appearance in mental development.

An abnormal love for or morbid impulses for new or fresh situations, objects, places, or activities.

A pathological aversion to new things and new ideas: There are those who are affected by cenotophobia because they prefer to continue with their satisfactory living conditions and situations and they don't want anything to change.

The youngest, or most recent, of the eras or major subdivisions of geologic time extending from the end of the Mesozoic Era to the present: The Cenozoic began about 65 million years ago during which modern plants and animals evolved.

1. The epoch of geologic time, 55 million to 38 million years ago, during which the ancestors of many modern animals appeared.
2. Etymology: from Greek eos, "dawn" + Greek kainos, "new".