What are the best answers for “rendering an organism sensitive to a serum by a series of injections”?

sensitisation, sensitising, sensitization, sensitizing.

How many letters does the top answer for “rendering an organism sensitive to a serum by a series of injections” have?

The most common answer is sensitisation (13 letters).

4 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

sensitisation 13 letters wn-def

rendering an organism sensitive to a serum by a series of injections

sensitising 11 letters wn-def

rendering an organism sensitive to a serum by a series of injections

sensitization 13 letters wn-def

rendering an organism sensitive to a serum by a series of injections

sensitizing 11 letters wn-def

rendering an organism sensitive to a serum by a series of injections