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There are 19 words beginning with RIBO

RIBOFLAVIN	• riboflavin n. (Biochemistry) Yellow or orange-yellow water-soluble compound, a member of the vitamin B complex, that… • RIBOFLAVIN n. a member of vitamin B complex, in yellowish-brown crystals, promoting growth in children, also RIBOFLAVINE.
RIBOFLAVINE	• RIBOFLAVINE n. a member of the vitamin B complex, in yellowish-brown crystals, promoting growth in children, also RIBOFLAVIN.
RIBOFLAVINES	• RIBOFLAVINE n. a member of the vitamin B complex, in yellowish-brown crystals, promoting growth in children, also RIBOFLAVIN.
RIBOFLAVINS	• riboflavins n. Plural of riboflavin. • RIBOFLAVIN n. a member of vitamin B complex, in yellowish-brown crystals, promoting growth in children, also RIBOFLAVINE.
RIBONUCLEASE	• ribonuclease n. (Biochemistry) Any of a group of enzymes that catalyze the hydrolysis of ribonucleic acid. • RIBONUCLEASE n. an enzyme that catalyzes the hydrolysis of RNA.
RIBONUCLEASES	• ribonucleases n. Plural of ribonuclease. • RIBONUCLEASE n. an enzyme that catalyzes the hydrolysis of RNA.
RIBONUCLEIC	• ribonucleic adj. (Genetics) Of or pertaining to ribonucleic acid (RNA) or its derivatives. • RIBONUCLEIC adj. an acid derived from ribose.
RIBONUCLEOSIDE	• ribonucleoside n. (Biochemistry) Any nucleoside component of RNA. • RIBONUCLEOSIDE n. a nucleoside containing ribose.
RIBONUCLEOSIDES	• ribonucleosides n. Plural of ribonucleoside. • RIBONUCLEOSIDE n. a nucleoside containing ribose.
RIBONUCLEOTIDE	• ribonucleotide n. (Biochemistry, genetics) Any nucleotide having ribose as its sugar. • RIBONUCLEOTIDE n. a nucleotide containing ribose.
RIBONUCLEOTIDES	• ribonucleotides n. Plural of ribonucleotide. • RIBONUCLEOTIDE n. a nucleotide containing ribose.
RIBOSE	• ribose n. (Biochemistry) A naturally occurring pentose sugar, which is a component of the nucleosides and nucleotides… • RIBOSE n. a pentose sugar.
RIBOSES	• riboses n. Plural of ribose. • RIBOSE n. a pentose sugar.
RIBOSOMAL	• ribosomal adj. Of or relating to ribosomes. • RIBOSOMAL adj. relating to a ribosome.
RIBOSOME	• ribosome n. (Biology, cytology) A small organelle found in all cells; involved in the production of proteins by… • RIBOSOME n. a particle composed of protein and RNA.
RIBOSOMES	• ribosomes n. Plural of ribosome. • RIBOSOME n. a particle composed of protein and RNA.
RIBOZYMAL	• RIBOZYMAL adj. of or like a ribozyme, an RNA-derived molecule displaying enzyme-like activity.
RIBOZYME	• ribozyme n. A fragment of RNA that can act as an enzyme. • RIBOZYME n. a RNA derived molecular.
RIBOZYMES	• ribozymes n. Plural of ribozyme. • RIBOZYME n. a RNA derived molecular.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the 1Word.ws and WikWik.org.

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English Wiktionary: 183 words
Scrabble in French: 66 words
Scrabble in Spanish: 14 words
Scrabble in Italian: 196 words
Scrabble in German: 3 words
Scrabble in Romanian: 27 words

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