Wiktionary
a. 1 having the shape of a capital T. 2 (context figuratively English) having knowledge or skills that are broad and deep
Usage examples of "t-shaped".
Home was a little behind the main frontage of Grozny, so to speak, a T-shaped pocket, a pleasantly lit little dead-end street called Grozny Close, which protected its hundred or so apartments from the traffic and rush and the slightly higher crime rate of Grozny Street proper.
Painfully hampered, cruelly encumbered, Richard staggered on, the brown base under his arm as heavy as a soaked log, the T-shaped adjunct in his free hand, the tartan flex-tube round his neck like a fat scarf, and then the plug, freed from its broken catchlet, incensingly adangle between his legs.
Sunk into the floor was a heavy metal manhole cover with a T-shaped handle welded to its center.