Dictionary
Find
in
Dictionary
Thesaurus
Translations

Click to move up the list of words
trying plane
tryout
trypan blue
trypanosome
trypanosomiasis
trypsin
trypsinogen
tryptamine
tryptophan
trysail
tryst
TS
TSA
tsaddik
tsade
tsamma
tsar
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

tryptophan

tryp·to·phan [ tríptə fàn ]


noun 
Definition:
 
amino acid: an essential amino acid found in proteins such as casein and fibrin. C11H12O2N2

[Late 19th century. < tryptic "of trypsin" + -phane]
Advertisement

© 2009 Microsoft