in-

in- word element [L.], in, within, or into.

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in- word element [L.], not.

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in- ¹ or il- or im- or ir-

pref.

Not: invertebrate. Before l, in- is usually assimilated to il-, before r to ir-, and before b, m, and p to im-.

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in- ² or il- or im- or ir-

pref.

In; into; within: intubation. Before l, in- is usually assimilated to il-, before r to ir-, and before b, m, and p to im-.

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in-,

1 prefix meaning "fiber": inaxon, inemia, initis.

2 prefix meaning "in, on, within, into or toward": inborn, inbreeding.

3 prefix meaning "not, lack of, opposite of ": inarticulate.

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in(o)- 

word element [Gr.], fiber.

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in-

1. a prefix, in, within or into.

2. an intensive prefix.

3. a negative or privative prefix.