NUCLEOLUS

nucleolus, nucleole

(noun) a small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis

Source: WordNet® 3.1


Noun

nucleolus (plural nucleoli)

(cytology) A conspicuous, rounded body within the nucleus of a cell.

Source: Wiktionary


Nu*cle"o*lus, n.; pl. Nucleoli. Etym: [L., a little nut, dim. of nucleus.]

1. A little nucleus.

2. (Biol.)

Definition: A small rounded body contained in the nucleus of a cell or a protozoan.

Note: It was termed by Agassiz the entoblast. In the protozoa, where it may be situated on one side of the nucleus, it is sometimes called the endoplastule, and is supposed to be concerned in the male part of the reproductive process. See Nucleus.

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

16 March 2025

SUSPENDED

(adjective) (of undissolved particles in a fluid) supported or kept from sinking or falling by buoyancy and without apparent attachment; “suspended matter such as silt or mud...”; “dust particles suspended in the air”; “droplets in suspension in a gas”


coffee icon

Coffee Trivia

Decaffeinated coffee is not caffeine-free. Studies from the National Institute of Health (US) have shown that virtually all decaf coffee types contain caffeine. A 236-ml (8-oz) cup of decaf coffee contains up to 7 mg of caffeine, whereas a regular cup provided 70-140 mg.

coffee icon