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perfunctory
Definition: (adjective) unenthusiastic, routine, or mechanical.
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bo·ron  audio  (bôrn, br-) KEY 

NOUN:
Symbol B
A soft, brown, amorphous or crystalline nonmetallic element, extracted chiefly from kernite and borax and used in flares, propellant mixtures, nuclear reactor control elements, abrasives, and hard metallic alloys. Atomic number 5; atomic weight 10.811; melting point 2,300°C; sublimation point 2,550°C; specific gravity (crystal) 2.34; valence 3. See Table at element.
ETYMOLOGY:
bor(ax)1 + (carb)on

OTHER FORMS:
bo·ronic  (b-rnk, bô-) KEY (Adjective)


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