Tertiary

The primary, secondary, and tertiary wing feathers (remiges) of adult mourning doves are shed and replaced yearly in an orderly sequence, so flight is possible during molt. […] Little is known about the shedding sequence of the secondary or tertiary feathers or the related coverts. If it is similar to that of passerines, however, loss of the outermost tertiary feather occurs coincident with loss of the fifth or sixth primary[…]. The molt then would continue sequentially until the last or innermost tertiary was shed and replaced.

The primary rhizomes usually die during the growing season. The tertiaries and secondaries, however, live through the winter and become primary rhizomes the following year.

The options available for distribution of water during times of reduced supply or demand are the following: […] (b) To reduce the rate of flow in the primary canal (still maintaining continuous flow in it) and to supply full flow in rotation to secondaries and their tertiaries; (c) to reduce the rate of flow in both primary and secondary canals, and to supply full flow in rotation to tertiaries; […]

There is no evidence that irrigators fail to keep their supply canals (tertiaries, watercourses, ditches) open when they need water.

My principal objection is against the compound or derivative tints, given under the denominations of secondaries and tertiaries.

[Rudolf] Arnheim suggested that the capacity of activating tensions is to be found in the tertiary hues, which are unbalanced mixtures of primaries that are present in different quantities. This peculiar relationship between tertiaries must be distinguished from the interaction of complementary colors that occurs when primaries and secondaries are coupled.

There is, within our area, a great gap between the Eocene group and the later tertiaries, indicated by the difference of their organic contents. Between the existing fauna of our seas and the oldest stage of the later tertiaries, there is a distinct and extensive relationship of identity of species.

The feathers [of the least sandpiper (Calidris minutilla)], black centrally, are margined with bright rufous, especially on the back, scapulars, and tertiaries, and with white tips on the latter; the stripes on the middle of the throat and chest are indistinct or almost absent, more evident on sides of breast.

Coincident with the dropping out of the fifth or sixth primary is the molt of the outermost tertiary, followed by the adjoining tertiary, and then the third tertiary, which in most passerine birds is the last or innermost.

A gigaton-scale weapon would of necessity be a three-stage design (incorporating a fusion tertiary - likely with its own massive fission tamper - in addition to the fission primary and fission-jacketed fusion secondary), as a reasonably-sized primary would likely have difficulty imploding to ignition the enormous secondary that would be required to reach a one-gigaton yield with a two-stage thermonuclear.

Tertiaries living in places where there is no Church of the Order or of the Third Order can gain all the indulgences they would gain visiting such a church, by visiting their respective parish church, or, where there is no parochial church, by visiting another church or public oratory, and fulfilling the other conditions.

Immediately after her arrival in Ferrara, while she was still striving to secure the foundation of her exemplary reformed community of Dominican tertiaries, [Lucia] Brocadelli also renewed her attempts to enhance [Girolamo] Savonarola's saintly reputation.

[…] a continental northern Alaskan element, including a series of endemic species and disjuncts that have survived the Pleistocene glaciation in northern Alaska and thus represent relicts of the much warmer Tertiary […]