pen·i·cil·late \|penə|silə̇t, -ˌlāt\adjective Etymology: probably from (assumed) New Latin penicillatus, from Latin penicillus brush + -atus -ate : furnished with a tuft of fine hairs : ending in a tuft of hairs like a camel's-hair brush : penicilliform < a grass with penicillate stigmas > < the penicillate ear of the squirrel > • pen·i·cil·late·lyadverb • pen·i·cil·la·tion\ˌpenəsəˈlāshən\noun-s