(v) make insensitive or callous; deaden feelings or morals

(s) emotionally hardened; "a callous indifference to suffering"; "cold-blooded and indurate to public opinion"

(v) teach and impress by frequent repetitions or admonitions; "inculcate values into the young generation"

(n) any of numerous plants having stinging hairs that cause skin irritation on contact (especially of the genus Urtica or family Urticaceae)

(v) cause annoyance in; disturb, especially by minor irritations; "Mosquitoes buzzing in my ear really bothers me"; "It irritates me that she never closes the door after she leaves"

(v) sting with or as with nettles and cause a stinging pain or sensation

(v) turn pale, as if in fear

(v) cook (vegetables) briefly; "Parboil the beans before freezing them"

(s) of an obscure nature; "the new insurance policy is written without cryptic or mysterious terms"; "a deep dark secret"; "the inscrutible workings of Providence"; "in its mysterious past it encompasses all the dim origins of life"- Rachel Carson; "rituals t

(s) sticking together; "two coherent sheets"; "tenacious burrs"

(s) (of memory) having greater than average range; "a long memory especially for insults"; "a tenacious memory"

(s) stubbornly unyielding; "dogged persistence"; "dour determination"; "the most vocal and pertinacious of all the critics"; "a mind not gifted to discover truth but tenacious to hold it"- T.S.Eliot; "men tenacious of opinion"