communicable

What it means

1. epidemiologyAble to be transmitted between people or animals.

   (but the last two are not interchangeable in formal registers)

   Synonyms: transmissible, spreadable, catching · Antonyms: nontransmissible, noncommunicable

2. Readily communicated.

   Antonyms: incommunicable, ineffable

3. Talkative or expansive.

In a sentence

(but the last two are not interchangeable in formal registers)

Where it comes from

1. Latincommunicabilis
2. Old Frenchcommunicable
3. Englishcommunicable

From Old French communicable, Latin communicabilis.