SENIOR INDEBTNESS. Means the principal of (and premium, if any) and accrued interest on (including all interest accruing subsequent to the commencement of any bankruptcy or similar proceeding, whether or not a claim for post-petition interest is allowable as a claim in any such proceeding) (a) obligations of the Company under the Loan and Security Agreement, dated December 31, 1996, between Silicon Valley Bank and the Company, including any related notes, guarantees, collateral documents, instruments and... agreements executed in connection therewith, and in each case as amended, modified, renewed, replaced, restated, supplemented, refunded or refinanced from time to time (provided that the principal amount does not exceed $7,500,000 and the maturity date is not advanced), (b) obligations of the Company, whether outstanding on the date of this Agreement or hereafter created, incurred or assumed, as lessee under leases required to be capitalized on the balance sheet of the lessee under generally accepted accounting principles and leases of property or assets made as part of any sale and leaseback transaction to which the Company is a party, (c) all reimbursement obligations and other liabilities (contingent or otherwise) with respect to letters of credit, bank guarantees or bankers' acceptances, and (d) any amendments, renewals, extensions, modifications and refundings of any such indebtedness or obligation under clauses (a) (provided that the principal amount does not exceed $7,500,000 and the maturity date is not advanced), (b) or (c), above.View More