topical anaesthetic

NOUN
19 LETTERS · STARTS WITH T

topical anaesthetic is a valid 19-letter word worth 27 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
T1O1P3I1C3A1L1A1N1A1E1S1T1H4E1T1I1C3
1 + 1 + 3 + 1 + 3 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 4 + 1 + 1 + 1 + 3 =27 PTS
DOUBLE WORD → 54TRIPLE WORD → 81
MEANING

What does topical anaesthetic mean?