Library / English Dictionary

XL

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

The cardinal number that is the product of ten and four

Synonyms:

40; forty; XL

Classified under:

Nouns denoting quantities and units of measure

Hypernyms ("XL" is a kind of...):

large integer (an integer equal to or greater than ten)

 II. (adjective) 

Sense 1

Meaning:

Being ten more than thirty

Synonyms:

40; forty; twoscore; xl

Classified under:

Adjectives

Similar:

cardinal (being or denoting a numerical quantity but not order)

Credits

 Context examples: 

Navitoclax selectively binds to apoptosis suppressor proteins Bcl-2, Bcl-XL, and Bcl-w, which are frequently overexpressed in a wide variety of cancers, including those of the lymph, breast, lung, prostate, and colon, and are linked to tumor drug resistance.

(Navitoclax, NCI Thesaurus)