Akaryote

Part of speech: noun

Definitions

1. A type of organism characterized by the absence of a defined nucleus, typically found in the domains of bacteria and archaea
2. Referring to unicellular microorganisms lacking distinct nuclei, contrasting with eukaryotic cells that contain one
3. Describing prokaryotic life forms that do not possess membrane-bound organelles, including many types of bacteria and archaea

Etymology: The root is the Greek "karyon", meaning nut or kernel, which biologists adopted for the cell's nucleus, the inner body that holds genetic material. The prefix "a-" is the Greek negative, meaning "without", so the literal sense is "without a kernel". The ending follows the pattern of "prokaryote" and "eukaryote", the standard pair of terms for the two basic cell types. Those words use "pro-" ("before") and "eu-" ("true" or "well"), and they describe cells whose genetic material is, respectively, not enclosed in a membrane and enclosed in one. "Akaryote" is not the usual term for this group, which is why its meaning mirrors "prokaryote" so closely.

Synonyms: prokaryote

Antonyms: eukaryote