POLYMERIZING

Verb

polymerizing

present participle of polymerize

Adjective

polymerizing (comparative more polymerizing, superlative most polymerizing)

That polymerizes

Source: Wiktionary

POLYMERIZE

Pol"y*mer*ize, v. t. (Chem.)

Definition: To cause polymerization of; to produce polymers from; to increase the molecular weight of, without changing the atomic proportions; thus, certain acids polymerize aldehyde.

Pol"y*mer*ize, v. i. (Chem.)

Definition: To change into another substance having the same atomic proportions, but a higher molecular weight; to undergo polymerization; thus, aldehyde polymerizes in forming paraldehyde.

Source: Webster’s Unabridged Dictionary 1913 Edition