boss

BOSS

See OSS.

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boss¹ Informal

Chiefly US a professional politician who controls a party machine or political organization, often using devious or illegal methods

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boss²

1. Biology any of various protuberances or swellings in plants and animals

2. 

a. an area of increased thickness, usually cylindrical, that strengthens or provides room for a locating device on a shaft, hub of a wheel, etc

b. a similar projection around a hole in a casting or fabricated component

3. an exposed rounded mass of igneous or metamorphic rock, esp the uppermost part of an underlying batholith

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boss [bȯs]

(design engineering)

Protuberance on a cast metal or plastic part to add strength, facilitate assembly, provide for fastenings, or so forth.

(geology)

A large, irregular mass of crystalline igneous rock that formed some distance below the surface but is now exposed by denudation.

(naval architecture)

bossing

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BOSS - Bridgport Operating System Software. A derivative of the ISO 1054 numerical machine control language for milling, etc.